True or False:
3 x 4 = 4 x 3
True
8 x ( 3 x 4 ) = ( 3 X 4 ) x ⬜
⬜= 8
What is the product of 8 x 7.
56
Turn this division equation into a multiplication sentence.
35 ÷ 7 = 5
5 x 7 = 35
350
If 6 x 7 = 42, what does 7 x 6 = ?
42
Find the product. (2 x 3) x 4
24
Solve 12 x 7.
84
Which multiplication equation can be used to solve 72 ÷ 9 = ⬜?
9 + ⬜ = 72
⬜ + 9 = 72
⬜ x 9 = 72
72 x ⬜ = 9
Round 1,429 to the nearest hundred.
1,400
Use the commutative property to find the missing factor.
3 x __ = 27
9 x 3 = 27
Find the product. (4 x 3) x 5
60
Ms. Swanger planted pumpkins as shown below.
Which equation correctly shows the total number of pumpkins Ms. Swanger planted?
A. 4 x 9 = (4 x 5) x (4 x 4)
B. 4 x 9 = (4 x 5) + (4 x 4)
C. 4 x 9 = (4 + 5) + (4 + 4)
D. 4 x 9 = (4 + 5) x (4 + 4)
Ms. Zittrouer found the answer to 42 ÷ 7 by writing a multiplication equation that had the numbers 7 and 42. What multiplication equation did she most likely write?
7 x __ = 42
The third graders at White Oak collected 385 cans. The fourth graders collected 374 cans. How many cans did they collect in all?
385 + 384 = 759
Use the commutative property to write 2 multiplication equations for this array.
5 x 6 = 30
6 x 5 = 30
Ms. Reese wants to find the total number of pumpkin seeds needed to make pumpkin bread. She uses the expression shown to find how many seeds she needs.
(2 × 5) × 7
How can she group this a different way?
(2 x 7) x 5
or
2 x (5 x 7)
Ms. Zittrouer needs to solve 32 × 3 in her head. Show how she could use a strategy/property to complete the mental math problem.
Student answers may vary.
Ex: 32 x 3 = (30 x 3) + (2 x 3)
60 + 6
66
Ms. Carr wants to split 24 pencils with 8 students What is a division and multiplication equation that represents this problem?
24 ÷ 8 = 3
8 x 3 = 24
The third graders at White Oak collected 385 cans for the canned food drive. Fifth graders collected 469. How many fewer cans did third grade collect than fifth?
469- 385= 84 cans
What is the commutative property? Explain.
Student answers may vary.
Ex: The order in which you multiply factors does not change the product.
What is the associative property? Explain.
Student answers may vary.
Ex: The grouping of factors does not change the product.
What is the distributive property? Explain
Ex: You can decompose or break apart factors into numbers that are easier to work with.
How can you use multiplication to help you find the answer to division problems. Use a model and equation to explain your thinking.
Student answers may vary.
Write a word problem to represent the following equation.
4 x 5 = 20
Student answers may vary.