Strategies
Word Problems
Vocabulary
Commutative, Zero, Identity Properties
Distributive & Associative Properties
100
4 X 4
100
4 x 2 = 8
Noah can water 8 plants.
100
What is the name of the numbers being multiplied in a multiplication equation?
Factors
100
When you multiply a number by zero, the product is _______________ .
Zero
100
Write an expression for the following array using the distributive property. Include the product in your answer.
(4 x 7) + (1 x 7) = 35
200
What multiplication problem is being represented by the array? Include the product in your answer.
5 x 3 = 15
200
3 x 6 = 18
The total number of books is 18.
200
What is the answer to a multiplication problem called?
Product
200
When you multiply a number by 1, the product is the number being multiplied. What is the name of the property that tells us this?
Identity Property
200
Find the missing factor and the product
(4 x 3) x 2 = 4 x (__ x 2)
Missing factor: 3
Product: 24
300
What multiplication equation is being represented on the number line below? Include the product in your answer.
5 X 2 = 10
300
9 x 7 = 63
There are 63 tomato plants.
300
What is the mathematical term for breaking numbers apart?
Decompose
300
What is the missing value?
8 x 7 = 7 x ____
8
300
7 x 6
400
What multiplication problem is being represented by the repeated addition problem below? What is the product?
10 X 6 = 60
400
Jerome spent $40.
400
What term is used to describe the 80 and the 16 in this equation? HINT: two words
Partial Products
400
Create two arrays for the following equation. Use the commutative property to create the second array.
4 x 7
400
Find the missing factor and the product:
(10 x 5) x 2 = ___ x (5 x 2)
Missing Factor: 10
Product: 100
500
What multiplication problem is being represented by the following array? Include the product in your answer.
7 x 8 = 56
500
4 x 2 x 8 = 64
There are 64 bagels displayed.
500
What is a symbol used to represent an unknown amount called?
Variable
500
Easton says that you can use the commutative property to prove that 6 x 2 has the same product as 3 x 4. Is he correct? Why or why not?
Easton is not correct. The commutative property tells us that we can switch the order of the factors and still get the same product.
500
Solve the following problem by decomposing the 12 using the distributive property. Use friendly numbers.
12 x 9 =
(10 x 9) + (2 x 9) =
90 + 18 = 108