What do you know about Rounding & Estimation? by Weishan Lin

What do you know about Rounding & Estimation? by Weishan Lin https://padlet.com/lin_weishan/bj118kjcfo4q To create a post, double click on the blue space. Key in your name as the title. en-us 2017-01-12 05:02:57 UTC 2024-10-01 07:34:24 UTC hello@padlet.com Mrs Tan lin_weishan https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146695435 Dear P4 Appreciative,
Welcome to our first padlet discussion. Follow the instructions on your handbook to answer all 3 questions:

Qn 1: Rounding is ...

Qn 2: Estimation is ...

Qn 3: I think ...]]> 2017-01-12 05:09:38 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146695435 Kayli Mae Choo https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146967365 Qn 1: Rounding is shifting a number (for example 76) to the nearest ten (80). (Actually you must use a symbol for rounding off, but I can't find it on the keyboard )
Qn 2: Estimation is figuring out a sum with no working, so it also uses the rounding concept. You may be given a sum like 77+22. You have to first round off both numbers ( They will be 80 and 20), then, add up the rounded off numbers (80+20). The answer will be 100.
Qn 3: I think we are learning these topics as it can make sums easier. ]]> 2017-01-13 06:25:28 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146967365 Boon Yan Xin https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146970034 Qn 1: Rounding is making a number to the nearest ten or hundreds or thousands ....... Qn 2: Estimation is so called "guessing' a question with no working and with nothing at all . Qn 3: I think that using both rounding and estimating will help us to learn math in a simpler way.]]> 2017-01-13 07:17:56 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146970034 Henry Soh https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146970405 Qn 1:Rounding is moving the number to the nearest number depends on what the sum says Example: 18 rounding of to the nearest 10 is 20.The sum can be rounded of to the nearest 100 ,1000.......
Qn 2: Estimation is finding out what is the most possible number without doing any number sentences or any workings.
Qn 3:I think we are learning rounding and estimation because it will help us understand math concepts better and make our work easier. It may help us in the future too.]]> 2017-01-13 07:20:48 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146970405 Matthias Low https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146977466 Qn1 : Rounding is simplifying numbers but keeping them close .
Qn2 : Estimation means not finding the exact number, but finding the number closest to it.
Qn3: I think this is a easier way to do equations!]]> 2017-01-13 08:22:16 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146977466 Cheryl Koh https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146980805 Qn 1: Rounding is shifting a number to the nearest 10, 100 or 1000................
Qn 2: Estimation is 'guessing' the question with no working at all.
Qn 3: I think that rounding and estimation makes math more simple and make our work easier.]]> 2017-01-13 08:44:22 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146980805 Darius Yeo https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146990352
Qn 1: Rounding is making a number to the nearest 10, 100 or 1000.

Qn 2: Estimation is rounding a number and finding the solution mentally without any workings or number sentence.

Qn 3: We learn rounding and estimation as they will help us to make math calculations easier and faster when workings are tedious. ]]> 2017-01-13 09:43:58 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146990352 Shannie Wang https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146991675 Q1: Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use.

Q2: Estimation is doing a sum mentally without working.

Q3: I think we learn rounding and estimation because it probably makes math sums and problem sums easier.]]> 2017-01-13 09:50:34 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/146991675 Lu Shaoying https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147010816 Hi, here's what I know about rounding and estimation:
Q1 : Rounding is shifting a number to the nearest ten, hundreds or thousands. If your numbers in the ones place are five or above, round it UP to the nearest ten ( for example you round 38 to 40 ). If the number in the ones place is below five, round it DOWN ( for example 94 you round to 90 ) Rounding makes doing math more easy but is less accurate.
Example:
49 + 73 =
You round 49 to 50, then 73 to 70. Then the answer will be 120

Q2: Estimation is a rough calculation of a number, value or quantity.
Something like guessing, but you still don't completely rely on guessing. You will still have some thing to refer to and calculate on. More like predicting. And you should not use any working for estimation. Just mental calculation. But you usually don't do calculation. It's looking and then your mind process around how much ( or how many ) is there. And you also estimate volume, weight, length and area.... You estimate all kinds of things. Last time I went to a Lantern Festival party, they ask you to GUESS how many moon cakes are there. I counted how many rows and how much on each row, but the moon cakes on each row is not the same. So I tried to times but... it did not work. THAT is estimation.
Example:
Estimate how long is the classroom.
You do guess alright, but you know the classroom is longer then 1 m, so it cannot be cm. And you think that the classroom is longer than 2 m, so then you guess how long is the classroom but the answer needs to be after 2 m.

Q3: I think that we are learning rounding and estimating because it makes it quicker and easier to do math questions even though they are less accurate. But they are handy for roughly calculating numbers (like calculating how many people came to a theme park today). Plus, they might help us in our daily work and in the future.
Thanks! :)]]> 2017-01-13 11:44:00 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147010816 Toh Song Ping https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147010924 Q1 : Rounding is to make a number easier to use and shifting it to it's nearest tens . Example if you round up 996 to 1000 This the symbol of rounding off ≈

Q2 Estimation is a rough calculation Example if you fill a container with water and want to find the volume of water you might want to estimate before finding the real volume of water

Q3i think]]> 2017-01-13 11:44:34 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147010924 Edward liao https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147012163 Q1 : Rounding is a way of simplifying numbers to make them easier to understand or work with. The answer may not be right but easier to use as you do not need to cacualate
Q2: Estimation is rough guess on what is the answer without working and doing it yourself mentally.
Q3: I think we are learing rounding and estimation to cacualate mentally so we need not need to use a piece of paper to do cacualation]]> 2017-01-13 11:52:14 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147012163 ??? https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147027369 2017-01-13 13:22:29 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147027369 David Pan https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147027385 1.Rounding is making a number a number that is much easier to use like 9.02 to 9 or 9.98 to 10.

2.Estimation is a number that is randomly guess but close to the actual number.

3.I think that using both can learn math easier.???]]> 2017-01-13 13:22:32 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147027385 Jonathan Jiang https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147171593 Q1: Rounding is to move a number to its nearest ten, hundred , thousand, ten thousand... Example: If the number the question gave you is 26, to round it, you must move it to the nearest ten, which is 30.The answer is not 20 because you need 6 to get 26, whereas for 30, you only need 4.    Q2: Estimation is to guess a number that is close to the actual answer but not the exact answer. Estimations could be accurate or inaccurate. It depends if yours is a lucky guess or not, but if your estimation is inaccurate, it's okay. Most of the time, people's estimations are inaccurate. How to estimate - Example: If there are a lot of cookies in a jar, you could estimate the number of cookies in the jar first, before really counting the actual number of cookies in that jar.
Q3: I think rounding and estimation will help everyone in their work, including me. As our level goes higher, the number gets greater and greater, so we can use rounding and estimation in our work, including this year. Once I learn rounding and estimation on Monday, I'll never forget how to round and estimate as I grow older.]]> 2017-01-14 01:49:24 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147171593 Seow Zi Jun https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147172815 Q1: Rounding is making a number that is the closest to the nearest tens, hundreds or thousands.(Example: 984 is rounded to 990.)

Q2: Estimation is the calculation of the cost of something approximately before you have all the facts and figures. (Example: 985.8 is estimated to 986.)

Q3: I think that this can help us in our daily life. (Example like in supermarkets or buying something.)]]> 2017-01-14 02:48:58 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147172815 Koh Rui En https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147173252 Q1: I think rounding is to move a number closer to the nearest tens, hundreds or thousands. Example: (37 is closer to 40, so 37 will be rounded to 40 but not 30.)
Q2: I think estimation is about guessing a number that is close to the exact number. It does not need to be exact.
Q3: I think we are learning rounding and estimation to help us in our Math homework everyday

]]> 2017-01-14 03:25:09 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147173252 Damian Tan https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147174209 Q1: I think rounding means rounding up to the nearest tens, hundred and thousand. Example (86 is rounded to 90 because 86 is closer to 90 not 80.)

Q2: I think estimation is to predict a number, the number need not be exact. Example ( I do not know how long the school field is so i estimate that it is about 25m long.)

Q3: I think we are learning rounding and estimation because it will be one of our next topic in math. As it will also help us in our life to round up to something or to estimate something.

  ]]> 2017-01-14 04:18:31 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147174209 jael https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147174978 Q1. Thepro]]> 2017-01-14 05:18:28 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147174978 Jael https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147175132
Q1.Rounding is the process of replacing a number of approximately the same value but having fewer digits.(Example.$27.68 rounding off =$28)

Q2. To estimate means to find something close to the answer.

Q3.I think it will help us in our daily lives and it will be one of the topics we will be learning in maths .

]]> 2017-01-14 05:29:33 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147175132 Yi Ting https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147176256 Please come and read this!
Q1) Rounding is about going to the nearest number.
For example: Round 1234 to the nearest hundreds.
Q2) Estimation is about guessing a specific number.
For example: Estimate how long is your table.
Q3) We are learning rounding and estimation because there will be questions that involve rounding and estimation in PSLE and in our P4 tests.
Thank you for reading!]]> 2017-01-14 07:12:57 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147176256 Q1. Natalie https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147178351 I think rounding means to change a number to an easier form but keeping it close to the value . Eg: We round 12 to 10 because it is an easier form and it is close to the value.

Q2. Estimation means to find something close to the answer by not calculating it.

Q3. I think we are learning these because it will appear in our exams. ]]> 2017-01-14 08:43:11 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147178351 Amelia zuhairi https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147179051 Q1: I think rounding is transforming a number to the nearest ten , hundred or thousand . if the number is exactly between, example the number 5, it will be rounded of to ten ,not 1.
Q2 : I think estimating is nearly the same as rounding . turning it to the closest number you can .
Q3 I think that we are learning this is because it might appear in our end of year exam : ) thank you for reading ( if you read it )]]> 2017-01-14 09:11:12 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147179051 AMRON amron6335a https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184181 Q1:i think rounding is like if example:tom is 80.8kg,and80.8 is very near to 81 kg so if you round it off,it will be 81kg (the result is not that accurate but it is easier to caucalate the rounded off number Q2:estimation is basicly like guessing .estimation is like a rough guess you knowQ3:i think we learn this because we SOMETIMES WE NEED IT OUR DAILY LIVIES, by the way guys hows your mealworm going?

]]> 2017-01-14 11:27:52 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184181 Angelina Liang https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184186 Q1) I think rounding means to rounding up or down the number to the nearest five or ten to divide, multiply, add or subtract to find out what is the answer if you don't really need to know what is the specific answer. Example:(if rounded to the nearest ten) 26 is closer to 30 but not as close to 20. (if rounded to the nearest five) 26 is closer to 25 but not as close to 15 or 35.

Q2) Estimation is a rough guess of what is the answer.

Q3) We are learning rounding and estimation because it will help us everyday for example if there is a discount of 20% for some books then you have to do rounding, estimation or both to find out whether or not it is worth buying those books.]]> 2017-01-14 11:28:03 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184186 JUSTIN WONG https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184301 Q1;; I THINK IT MEANS THAT TO CHANGE A NUMBER TO ITS SIMPLEST FORM
Q2 I THINK ESTIMATION MEANS TO GUESS A NUMBER OR VALUE
Q3 I THINK WE ARE LEARNING ROUNDING AND ESTIMATION BECAUSE SOMETIMES WE NEED IT OUR DAILY LIVIES]]> 2017-01-14 11:31:30 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184301 Xin Chen https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184904 1)I think rounding means to shorten numbers,involves either increasing or decreasing number.

2)I think estimation means to guess a number or look at the digit to the right of the digit you want to estimate.

3)I think we are learning rounding and estimation because we need it to help us in our daily lives to calculate things.]]> 2017-01-14 11:50:16 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147184904 Sarah https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147185222 Q1.I think rounding is making a number to the nearest ten,hundred or thousand.

Q2.I think estimation is roughly guessing a number but it does not need to be the correct answer.

Q3.I think we are learning rounding and estimation because it is our next topic and we will need rounding and estimation in our daily lives.]]> 2017-01-14 11:59:47 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147185222 ELIZAH 14/1/2017 Saturday 8.41p.m. https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147186414 1:I think rounding off numbers is away to estimate a number to the nearest ten, hundred, thousand ,ten thousand or even hundred thousand !

Q

]]> 2017-01-14 12:40:25 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147186414 Elizah 14/1/2017 Saturday 8.49p.m. https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147186629 Q1: I think rounding off numbers is to estimate a number to the nearest ten , hundred,thousand ,ten thousand or even hundred thousand!

Q2:I think estimation is to roughly guess a number and the number can be either wrong or right ,either ways the number is just a guess

Q3:I think it is because we need rounding and estimating numbers in our daily lives!

😀

]]> 2017-01-14 12:48:24 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147186629 Megan lsneo136 https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147212156 Q1: Rounding is to bring a number to the nearest ten or hundred.
Q2: Estimation means to guess what is the correct answer.
Q3: I think we are learning rounding and estimation because when we start doing problem sums, we would have to use rounding and estimation.]]> 2017-01-15 00:58:31 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147212156 Damien Goh https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213092 Q1.Rounding means to make a number to the closest tens or hundred
Q2.Estimation means guessing a number that is close to the answer
Q3.We use estimation because finding the exact answer takes too long. We use rounding because it makes calculation easier.]]> 2017-01-15 02:09:27 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213092 Avinash 15/1/17 Sunday 10:20hrs https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213104 1) Rounding is to change your number to a near but easier to remember number: 48 will be rounded to 50 and 42 will be rounded to 40.

2) Estimation is to guess a number or quantity of something.

3) We need to learn rounding and estimation because we will need it when we grow up.

]]> 2017-01-15 02:10:37 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213104 Wan lin https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213893 1)rounding off is like making a number go to its nearest tens,hundreds,thousand.....It's like you want to round 1128 to nearest tens it will become 1130 so what I have to do is to look at number 2(which is in the tens place)and look at the number on its right if it is 5 and above means I can increase the number 2 to three but no matter what the number 8 will become 0
2)estimation is like to guess a number near the correct number
3)We may need to use rounding and estimation in future

]]> 2017-01-15 03:09:01 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147213893 Brenda Ong https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147216764 Question1:Rounding ]]> 2017-01-15 05:43:36 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147216764 Brenda Ong https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147216815 Question 1: Rounding is changing numbers into the nearest tens, nearest hundreds or nearest thousands.
For example, round 3582 to the nearest tens. The answer is 3580.
Question 2:
Estimation is guessing the value, cost length or weight of something.
For example, estimate the length of a door. my estimation will be 3 metres.
Question 3:
I think we are learning rounding and estimation to make counting numbers or things easily,such as paying money. They would also help count, multiply and divide numbers quickly and accurately.

isla d]]> 2017-01-15 05:45:45 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147216815 Ezekiel Tan https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147218057 Question 1

Rounding means changing a number but keeping its value close to what it was. The result will be less accurate, but easier to use.

We round up when the number in the ones place is 5 or greater and round down when the number in the ones place is 4 or lesser.

Example: 33 rounded to the nearest ten is 30. 38 rounded to the nearest 10 is 40

Question 2:

To estimate means to find something close to the correct answer. In other words, you are approximating.The exact number of candies in this jar (see picture below) cannot be determined by looking at it, because most of the candies are not visible. In such cases, we need to use estimation when the number to count is too high to be counted at that moment.

Question 3:
We learn rounding so we can make large numbers easier to work with.
We use estimation in situations where we don’t know the exact answer but can make
a best guess. For example, I use estimation to gauge the length of time I need to complete my homework.

]]> 2017-01-15 06:48:23 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147218057 Kristy Yeo https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147219567 Question 1 : Rounding is to make a number into the nearest whole number.

Question 2 : Estimation is to guess a number or quantity of something.

Question 3 : We are learning rounding and estimating because in future we will be using it a lot in our work and daily lives.]]> 2017-01-15 07:51:50 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147219567 Morris Soh https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147221100
Qn 1 Rounding is the process of replacing a no. by another no. of approximately the same value.Anything after 5 at the ones place , the tens place will be added by 1. Anything before5 at the ones place , the tens will not be changed. Qn 2 Estimation is a close guess of the actual value . It can be used to check whether a calculation is reasonable Qn 3 I think we are learning rounding and estimating is making the sum easier to solve. ]]> 2017-01-15 08:51:04 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147221100 Ellie Ho nickho09 https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147223221 1)Rounding is replacing a number to the nearest whole number.

2)Estimation is guessing number or a value.

3)I think we are learning about Rounding and Estimation so to save time in our work.]]> 2017-01-15 09:46:57 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147223221 Dexton Phua https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147224375 1) Rounding is making the number simpler while keeping close to its value. However, it is not precise.
2) Estimation is a rough guess of what the value is.
3) We need to learn rounding and estimation as it helps in our daily live as it makes things easier to understand and discuss.]]> 2017-01-15 10:13:23 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147224375 :) nickho09 https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147224810 2017-01-15 10:22:10 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147224810 https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147225638 2017-01-15 10:37:49 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147225638 TOH SONG PING https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147226127 Rounding is grouping a number to its nearest ten
example 299 round up to 300

Estimation is guessing a number or length or volume ext

we learn it to save some time

]]> 2017-01-15 10:46:44 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147226127 Michael Ngo https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147228098 Question 1: Rounding is to round off a particular number to its nearest tens, hundreds or thousands. For example, round off the number 36 to the nearest tensto get an answer of 40.
Question 2: Estimation is a way of finding the addition of 2 or 3 numbers by first rounding off each individual number to its nearest tens or hundreds and then add the 3 rounded off numbers
Question 3
We learn rounding and estimation to help us calculate fast.]]> 2017-01-15 11:20:51 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147228098 Tong Zong Wei Ningyiyee https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147228197 1)Rounding is to make a number closest to the nearest tens, hundreds,thousands or ten thousands.For example, 43 will be rounded off to 40 and 45 will be rounded off to 50.

2)Estimation is a rough calculation of a value.For example,sometimes in a event to win some prizes you might have to guess the number of balls in a container and you have to try and estimate the number of balls.

3)I think we are learning rounding and estimating to apply in real life situation like the example in number 2 and also when in estimating the discounted price of an item.]]> 2017-01-15 11:22:32 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147228197 Seth Tang https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147231004 1)Rounding is rounding a number off to the nearest ten or hundred , for example , 84 rounded off to the nearest ten is 80 , 901 rounded off to the nearest hundred is 900

2)Estimation is like guessing the number , for example, the teacher asks us to guess the height of the door , we have to try and estimate the height .

3)I think we learn rounding and estimation to help us to calculate and learn fast]]> 2017-01-15 12:23:36 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147231004 Keagan Soh https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147268073 1) Rounding is rounding numbers to the nearest ones, tens, hundreds or thousands

2) Estimation is guessing the answer in a question by using rough calculations.

3) We can use rounding and estimation in or daily lives to do quick comparisons of values to get big picture overviews of data.]]> 2017-01-15 22:34:06 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/147268073 https://padlet.com/lin_weishan/bj118kjcfo4q/wish/151129503 2017-02-02 13:51:44 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/151129503 Who spam smiley faces? https://padlet.com/lin_weishan/bj118kjcfo4q/wish/172952671 2017-05-21 02:48:24 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/172952671 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117845 2017-05-28 07:37:59 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117845 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117859 2017-05-28 07:38:12 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117859 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117865 2017-05-28 07:38:15 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117865 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117868 2017-05-28 07:38:18 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117868 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117870 2017-05-28 07:38:22 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117870 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117873 2017-05-28 07:38:25 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117873 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117875 2017-05-28 07:38:28 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117875 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117877 2017-05-28 07:38:31 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117877 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117881 2017-05-28 07:38:34 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117881 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117885 2017-05-28 07:38:37 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117885 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117887 2017-05-28 07:38:40 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117887 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117890 2017-05-28 07:38:43 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117890 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117892 2017-05-28 07:38:46 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117892 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117895 2017-05-28 07:38:52 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117895 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117898 2017-05-28 07:38:57 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117898 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117900 2017-05-28 07:39:00 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117900 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117902 2017-05-28 07:39:03 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117902 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117903 2017-05-28 07:39:06 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117903 :) https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117906 2017-05-28 07:39:10 UTC https://padlet.com/lin_weishan/bj118kjcfo4q/wish/174117906