Check your work
Fact Families
Arrays and Missing Numbers
Why???
Word Problems
100
Dominic solved a division problem:
18 ÷ 6 = 3
Which problem could he use to check his answer?
A. 18 x 6
B. 18 - 6
C. 3 x 6
D. 3 ÷ 6
C. 3 x 6
100
If 5 x 9 = 45, what is 45 ÷ 9?
A. 5
B. 9
C. 54
D. 45
A. 5
100
The figure below is a model for a division sentence.
42 ÷ 6 = 7
Which multiplication sentence is modeled by the same figure?
A. 5 x 7
B. 6 x 7
C. 7 x 7
D. 6 x 8
B. 6 x 7
100
Kelsie correctly divided 12 by 1. Kelsie explained that the identity property helped her. Is she correct?
A. Yes, because the identity property says you can group numbers in any order you like and get the same product.
B. Yes, because the identity property says that any number x 0 = 0.
C. Yes, because the identity property says that any number divided by 1 is the original number.
D. Yes, because the identity property says that you can put factors in any order.
C. Yes, because the identity property says that any number divided by 1 is the original number.
100
Allison has 35 cookies to share. She wants to give them away evenly to her 7 friends. Which number sentences could Allison use to help her know how many cookies each friend will get? CHOOSE TWO.
A. 35 x 7 = ?
B. 7 x ? = 35
C. 35 ÷ 7 = ?
D. 35 x ? = 7
B. 7 x ? = 35
C. 35 ÷ 7 = ?
200
Evie was doing her math homework. She wanted to check the work for the problem:
4 x 5 = 20
What would be the correct division problem to check her answer?
A. 20 ÷ 5
B. 5 ÷ 4
C. 4 ÷ 5
D. 5 x 20
A. 20 ÷ 5
200
Which number sentence has the same unknown value as 24 ÷ ? = 4
A. ? ÷ 24 = 4
B. 4 x ? = 24
C. 4 ÷ 24 = ?
D. 24 x 4 = ?
B. 4 x ? = 24
200
This model shows the multiplication problem
6 x 9 = 54
Which of these division sentences are also shown in the model?
A. 6 x 6 = 36
B. 9 x 9 = 81
C. 54 ÷ 9 = 6
D. 9 ÷ 6 = 3
C. 54 ÷ 9 = 6
200
What missing number makes this equation true?
? ÷ 4 = 2
A. 10, because 2 x 4 = 10
B. 6, because 6 - 4 = 2
C. 8, because 2 x 4 = 8
D. 4, because 4 ÷ 4 = 2
C. 8, because 2 x 4 = 8
200
Miles has 15 soccer trophies. He wants to display them in equal groups on the three shelves in his bedroom. How many trophies will he put on each shelf?
A. 15
B. 3
C. 5
D. 18
C. 5
15 ÷ 3 = 5
300
Landon sold 20 cups of lemonade during his 4 day lemonade stand. If he sold an equal number each day, how many did he sell each day? Check your work with the opposite operation.
A. 5 because 20 ÷ 4 = 5 and 5 x 4 = 20
B. 24 because 20 + 4 = 24 and 24 + 4 = 28
C. 80 because 20 x 4 = 80 and 80 ÷ 4 = 20
D. 16 because 20 - 4 = 16 and 16 + 4 = 20
A. 5 because 20 ÷ 4 = 5 and 5 x 4 = 20
300
What number makes 56 when multiplied by 8?
A. 6
B. 7
C. 8
D. 9
B. 7
7 x 8 = 56
300
21 ÷ 7 = ? Which of these number sentences have the same missing factor? Choose ALL that apply.
A. 10 ÷ 2 = ?
B. 9 ÷ 3 = ?
C. 15 ÷ 5 = ?
D. 30 ÷ 10 = ?
B. 9 ÷ 3 = ?
C. 15 ÷ 5 = ?
D. 30 ÷ 10 = ?
300
5 = 10 ÷ ? Which number makes this equation true?
A. 5, because 10 - 5 = 5
B. 10, because 5 + 5 = 10
C. 10, because 10 x 1 = 10
D. 2, because 5 x 2 = 10
D. 2, because 5 x 2 = 10
300
There are 36 kids in Mrs. Tucker and Mrs. Preston's 3rd grade classes. For Field Day, Coach K needs teams with equal amounts of students on each team. How many teams could they create with equal groups of students? Choose all the correct answers.
A. 2 teams
B. 4 teams
C. 5 teams
D. 6 teams
E. 7 teams
F. 9 teams
A. B. D. F.
2 groups of 18 = 26
4 groups of 9 = 36
6 groups of 6 = 36
9 groups of 4 = 36