Strategies for Multiplication
What is that strategy that says 2+2+2=2x3?
What is repeated addition?
This property of multiplication states that 2 x 4=4 x 2
What is the commutative property?
If Maria has 4 rows of lettuce, each row has 2 plants in it. How many lettuce plants does Maria have?
What is 8?
2 x 1
What is 2?
3 x 2
What is 6?
The strategy that use circles and dots to represent an equation.
what is the equal groups strategy?
This property of multiplication states that anything times zero = 0 (Example 100 x 0 =0)
What is the zero property of multiplication?
Shelley is spending $5 for each of her 4 friends. Her total is _
What is 20?
3 x 5
What is 15?
8 x 10
What is 80?
The strategy that uses factors for columns and rows.
What is an array?
This property states that anything times 1 = that thing (Example: 1000 x 1 =1)
What is the identity property of multiplication?
William is buying 7 new pairs of shoes. How many shoes does he have?
What is 14?
6 x 4
What is 24?
5 x 9
What is 45?
This strategy
What is a number line?
This property states that known facts can be used to solve unknown facts. (example: 8 x 3 = (4 x 3) + (4 x 3)
What is the distributive property of multiplication?
There are 3 stores. Each store has 2 parking lots with 8 slots each. How many slots does each store have?
2 x 8 = 16
6 x 7
What is 42?
8 x 9
What is 72?
What strategy works best for you? Everyone must answer
____
The property of multiplication shown:
4 x 7 = (2 x 7) + (2 x 7)
What is the distributive property of multiplication?
There are 6 stickers on a case of chips. There are 5 cases of chips on the shelf. Each case of chips has 10 bags inside of it. How many bags of chips are on the shelf?
5 x 10 = 50
10 x 10
What is 100?
7 x 7
What is 49?