Sally has 2 bags of dog bones. Each bag has 40 bones in each. How many bones does she have for her dog?
What is 80 bones
You can multiply any number by 1 and the product will be that number.
What is the identity property of multiplication?
What is 10 x 9 = 90
What is 4 x 8 = 32
5 x 8 =
What is 40?
Sally has 7 boxes that each have 52 cat toys. How many cat toys are there altogether?
What is 364 cat toys?
Factors can be multiplied in any order and the product will remain the same.
What is commutative property of multiplication?
What is 5 x 4 = 20?
What is 2 x 4 = 8
3 x 9 =
What is 27?
Kevin buys school supplies. Pencils come in packages of 6. If he buys 4 packs, how many pencils is that?
What is 24 pencils?
3 x 4 = 4 x 3
What is the commutative property?
What is 2 x 8 = 16
What is 5 x 7 = 35
7 x 7 =
What is 49?
Kevin buys 8 boxes of erasers and there are 9 erasers in each box. How many erasers will he have?
What is 72 erasers?
____ x 9 = 9
What is the number 1?
10 x 10 = 100
What is 6 x 9 = 54
____ x 8 = 64
What is 8?
A platter of sandwiches has 28 meals. If the bank orders 3 sandwich platters how many meals can they serve?
What is 84 meals?
The other type of problem solving that utilizes a commutative property.
What is addition?
What is 4 x 6 = 24
What is 4 x 12 = 48
9 x ____ = 54
What is 6?