Multiplicating Negative and Positive Numbers by https://padlet.com/cornejol496/9y26170m6h4u By: Linda Cornejo en-us 2019-03-11 22:38:42 UTC 2024-05-26 02:04:32 UTC hello@padlet.com When we Multiply: cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340190024 Two Positive Signs Will Always Equal Positive Numbers 
Ex: 
3 * 3 = 9 
Two Negatives Make a Positive Number
Ex:
(-3) * (-2) = 6
A Negative Number and a Positive Number Makes a Negative Number
Ex: 
(-3) * 4 = -12
A Positive Number and a Negative Number Makes a Negative Number
Ex:
4 * (-2) = -8 ]]> 2019-03-11 22:42:12 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340190024 Picture of the Signs cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340190897 Rules for multiplication ]]> 2019-03-11 22:47:53 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340190897 We Need to know about Signs that... cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340191046 "+" means positive "-" means negative.
Usually when a number has no sign it means positive.
Ex: 5 or +5
We put parenthesis ( ) around numbers to not make confusions. 
Ex.
3 x (-2) = -6 ]]> 2019-03-11 22:49:00 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340191046 Why does Multiplying two negatives make a positive number? cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340191786 Negative times a negative is a force logical sequence of those two next basic beliefs of arithmetic:
a x 0 = 0 
a (b + c) = ab + ac

]]> 2019-03-11 22:53:46 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340191786 cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340193514 2019-03-11 23:03:30 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340193514 Arizona State Standards cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340193570 3.OA.D.10
When solving problems, assess the reasonableness of answers using mental computation and estimation strategies including rounding]]> 2019-03-11 23:03:51 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340193570 Arizona Standards cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340194372 3.OA.A.1
Interpret products of whole numbers as the total number of objects in equal groups (e.g., interpret 5 x 7 as the total number of objects in 5 groups 7 objects each).  ]]> 2019-03-11 23:08:40 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340194372 Multiplication Tables cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340195923 2019-03-11 23:16:22 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340195923 Directions cornejol496 https://padlet.com/cornejol496/9y26170m6h4u/wish/340196424 It all has to do with directions like the number line. For students would be easier to remember this with the number line chart since it has the numbers from negative to positive as shown below. ]]> 2019-03-11 23:18:31 UTC https://padlet.com/cornejol496/9y26170m6h4u/wish/340196424