Bradley Garrity by bradley

Absolute Value

pbskids4life — 2017-07-20 16:59:40 UTC

the magnitude of a real number without regard to its sign
|-7|=7

www.mathsisfun.com/numbers/absolute-value.html

Integer

pbskids4life — 2017-07-20 17:02:44 UTC

a whole number; a number that is not a fraction
1+5= 6
://www.mathsisfun.com/whole-numbers.html

Distributive property

pbskids4life — 2017-07-20 17:08:33 UTC

The distributive property is one of the most frequently used properties in math

(2) (3+4+5) =24

http://www.mathsisfun.com/definitions/distributive-law.html

Variable

pbskids4life — 2017-07-20 17:14:24 UTC

(of a quantity) able to assume different numerical values.

4x+3
x=variable

https://www.mathsisfun.com/algebra/definitions.html

pbskids4life — 2017-08-03 09:21:47 UTC

When subtracting two negative numbers, you have to change the negative interger to a positive interger. If you subtract a positive from a negative you have to go backwards from the amount you're subtracting. To subtract a negative number from a positive you add the opposites and do the addition correctly.

pbskids4life — 2017-08-03 09:26:30 UTC

When adding negatives and positives if they do not have the same sign subtract the number with the smaller absoulute value from the one with the greater absolute value. Then take the larger absoulute values, sign.

Integers Grade - 83%

2017-08-07 01:31:25 UTC

- Missing question 2

pbskids4life — 2017-08-09 16:18:19 UTC

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Converting decimals to fractions

pbskids4life — 2017-08-15 16:57:42 UTC

In order to convert a decimal to a fraction you must you use the decimal as the numerator and then use the place of the decimal as the denominator.

Example:
.34 would be 34/100

It would become that because the decimal is Thirty Four Hundredths . So the actual number would be the numerator and the place value would be the denominator.

Converting a fraction to a decimal

pbskids4life — 2017-08-15 17:06:27 UTC

Step 1: Find a number you can multiply by the bottom of the fraction to make it 10, or 100, or 1000, or any 1 followed by 0s.
Step 2: Multiply both top and bottom by that number.
Step 3. Then write down just the top number, putting the decimal point in the correct spot (one space from the right hand side for every zero in the bottom number)

example:
3/4= .75

Multiplying with decimals

pbskids4life — 2017-08-15 17:09:31 UTC

Line up the numbers on the right - do not align the decimal points.
Starting on the right, multiply each digit in the top number by each digit in the bottom number, just as with whole numbers.
Add the products.

Example:
3.77
x 2.8
_________
3016
+754
__________
10.556

Dividing with decimals

pbskids4life — 2017-08-15 17:09:42 UTC

If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
Then divide.
Then move the decimal back the same amount of places that you moved it.

Example: 12 / .4 ----->
12 / 4.= 3
.3 <-----

Common Denominator

pbskids4life — 2017-08-15 17:10:13 UTC

Definition:
a shared multiple of the denominators of several fractions.

1/3+5/9=
3/9+5/9= 8/9

https://www.mathsisfun.com/definitions/common-denominator.html

Mixed Number

pbskids4life — 2017-08-23 16:49:18 UTC

A number consisting of an integer and a proper fraction.

Example:
7/4= 1 3/4
because four goes into seven once and the remainder would be the numerator

https://www.mathsisfun.com/mixed-fractions.html

Improper fraction

pbskids4life — 2017-08-23 16:53:33 UTC

A fraction in which the numerator is greater than the denominator.

Example: 9/7

https://www.mathsisfun.com/definitions/improper-fraction.html

Equivalent Fraction

pbskids4life — 2017-08-23 16:55:36 UTC

Equivalent fractions are different fractions that name the same number

example: 2/3 = 4/6

https://www.mathsisfun.com/equivalent_fractions.html

Rational Numbers Grade - 94%

2017-08-28 18:02:28 UTC

- Examples are needed when giving an example for a term.

pbskids4life — 2017-08-30 15:58:25 UTC

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How to solve a two step equation

pbskids4life — 2017-08-30 15:59:51 UTC

1.Simplify using the inverse of addition or subtraction.

2.Simplify further by using the inverse of multiplication or division
http://www.math.com/school/subject2/images/S2U3L6GLeq1.gif

How to estimate the square root of a number

pbskids4life — 2017-09-30 19:41:27 UTC

Many mathematical operations have an inverse, or opposite, operation. Subtraction is the opposite of addition, division is the inverse of multiplication, and so on. Squaring, which we learned about in a previous lesson (exponents), has an inverse too, called "finding the square root." Remember, the square of a number is that number times itself. The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100

16=4 since 4 to the second power equals 16

Cube root

pbskids4life — 2017-09-30 19:49:49 UTC

Definition: The cube root of a number is a special value that, when used in a multiplication three times, gives that number.

Example: 3 × 3 × 3 = 27, so the cube root of 27 is 3

https://www.mathsisfun.com/definitions/cube-root.html

Additive inverse

pbskids4life — 2017-09-30 19:55:57 UTC

Definition: What you add to a number to get zero.
The negative of a number.

Example:
The additive inverse of −5 is 5, because −5 + 5 = 0.
The additive inverse of +5 is −5 as well.
https://www.mathsisfun.com/definitions/additive-inverse.html

Repeating decimal

pbskids4life — 2017-09-30 20:08:15 UTC

Definition: A decimal number that has digits that repeat forever.

Examples:

1/3 = 0.333... (the 3 repeats forever)
1/7 = 0.142857142857... ( the "142857" repeats forever)
77/600 = 0.128333... (the 3 repeats forever)

The part that repeats is usually shown by placing dots over the first and last digits of the repeating pattern, or sometimes a line over the pattern.

https://www.mathsisfun.com/definitions/recurring-decimal.html

Square root

pbskids4life — 2017-09-30 20:10:59 UTC

Definition: The square root of a number is a value that, when multiplied by itself, gives the number.

Example: 4 × 4 = 16, so a square root of 16 is 4.

Note that (−4) × (−4) = 16 too, so −4 is also a square root of 16.
https://www.mathsisfun.com/definitions/square-root.html

Equations Grade - 83%

2017-10-09 12:28:25 UTC

- Example solution for solving a 2 step equation is missing.
- An example of the square root of 30 would be an example you could use. 30 falls between the 2 perfect squares of 25 and 36. There for the estimated answer would be about 5.5.

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pbskids4life — 2017-10-17 17:01:03 UTC

When to flip the inequality sign

pbskids4life — 2017-10-23 17:11:01 UTC

Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign

<

pbskids4life — 2017-10-24 22:47:06 UTC

Smaller
Fewer than
Below

Example: Roxanne had fewer than 2 pet ducks

x<4

>

pbskids4life — 2017-10-24 22:53:33 UTC

Bigger
Above
More than

Example:
Robert has more than 3 oranges

≥

pbskids4life — 2017-10-24 22:55:18 UTC

Minimum
No less than
No fewer than

Example: Jacob has to have a minimum of 5 points too win a prize
x ≥ 4

≤

pbskids4life — 2017-10-24 22:56:11 UTC

Maximum
No more than
Smaller than or equal too

Example: The maximum amount of cookies you could have was 10
x≤4

pbskids4life — 2017-10-24 23:22:32 UTC

pbskids4life — 2017-10-24 23:23:13 UTC

pbskids4life — 2017-10-24 23:25:22 UTC

Inequality

pbskids4life — 2017-10-24 23:27:44 UTC

Definition: the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”
Example of the word: 7835<9862. This has an inequality sign in it, so the 2 expressions new not equal.
Non-Example:
6+5=11
This would not be an example because this does not show 2 expressions that aren't equal. This is an addition problem.

Solving Inequalities - Math is Fun
Shows you how to solve inequality

Solution Set

pbskids4life — 2017-10-24 23:41:48 UTC

Definition: the set of all the solutions of an equation or condition.

(x−3)(x−2) = 0
When x is three:
(3−3)(3−2) = 0 × 1 = 0
When x is 2:
(2−3)(2−2) = (−1) × 0 = 0
The solution set:
x=3 x=2

equations-solving.html

Inequalities Grade - 93%

2017-10-27 01:33:26 UTC

- Missing an example for the question.
- Example statements should match the number lines.

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pbskids4life — 2017-11-10 13:09:29 UTC

Unit Rate

pbskids4life — 2017-11-10 13:09:59 UTC

http://www.mathsisfun.com/measure/unit-price.html

Definition: a comparison of two measurements in which
one of the terms has a value of 1.

This shows an example of unit rate

pbskids4life — 2017-11-10 13:19:31 UTC

What are the four types of slope

pbskids4life — 2017-11-15 21:17:07 UTC

1. Positive
2. Negative
3. Undefined
4. Zero
Positive: -4,3 and 1,5
Negative: 0,6 and 3,3
Undefined x=-3
Zero: y=4

pbskids4life — 2017-11-15 21:35:44 UTC

What are the different parts in a linear equation

pbskids4life — 2017-11-15 21:49:03 UTC

y=mx+b
Y equals the y coordinate. X equals the x coordinate
M equals the constant or slope
B equals the y intercept

What has too be true for 2 figures too be considered similar?

pbskids4life — 2017-11-15 21:51:08 UTC

They must be different sizes but the same shape, have congruent corresponding angles, have proportional corresponding sides.

Proportion

pbskids4life — 2017-11-15 21:55:10 UTC

proportion.html
Definition: roportion says that two ratios (or fractions) are equal.
These are proportionate trapezoids.

Scale Factor

pbskids4life — 2017-11-16 01:06:47 UTC

http://study.com/academy/lesson/what-is-a-scale-factor-definition-formula-examples.html
Definition: The number which multiplies, or scales, a quantity.
The picture shows an example of solving for scale factor

Indirect Measurement

pbskids4life — 2017-11-16 01:10:41 UTC

indirect-measurement
Definiton: A way to find an unknown length or distance using proportions in similar figures
This shows an example of indirect measurement

Proportional Reasoning and Linear Equations Grade - 95%

2017-11-17 01:44:25 UTC

- Slope values are missing from the question. It should not be coordinates or equation examples. Positive value example would be 4/5 or 6.