Subtraction
52 − 38
14
There were 84 people at the movie theaters. During the movie, 37 people left. How many people are still at the movie theater?
47 people
A student is solving 68 − 45 by using the decomposing strategy.
What is the last step the student should take to find the answer?
A. 20 + 3 = 23
B. 20 + 8 = 28
C. 20 − 3 = 17
D. 20 − 8 = 12
A. 20 + 3 = 23
What is the unknown number?
8 − 5 = □
3
Is the equation true?
8 + 5 = 13 − 0
Yes
64 − 32
32
John found 28 seashells at the beach. When he got home, he gave 13 away. How many seashells does he have left?
15
What is the unknown number?
14 − □ = 8
6
Which equation is true?
a. 13 - 6 = 6 + 13
b. 12 − 4 = 6 + 2
c. 8 + 4 = 6 + 7
b. 12 − 4 = 6 + 2
96 − 54
32
Kristen has $36. She spent $24 at the store. How much money does she have left?
$12
What is the unknown number?
17 − □ = 6
11
Which number sentence is true?
a. 15 − 7 = 6 + 2
b. 4 + 7 = 7 - 4
c. 20 - 3 = 9 + 9
a. 15 − 7 = 6 + 2
63 − 29
34
Jax had 27 baseball cards. He gave some to Tom. Now he has 19 cards left. How many cards did Jax give to Tom?
8 cards
Bobby solved the subtraction problem on his test.
75 − 28 = 47
Which addition equation shows that the answer is correct?
A. 28 + 75
B. 47 + 75
C. 28 + 47
D. 28 + 28
C. 28 + 47
□ − 7 = 12
19
Which expression makes the number sentence true?
9 + 5 =?
a. 18 - 10
b. 14 − 0
c. 9 - 5
b. 14 − 0
90 − 48
42
There were 35 cats in the barn. Some cats ran away. Now there are 18 cats left in the barn. How many cats ran away?
17 cats
Which problem could be used to check 74 − 39?
A. 39 − 35 = 4
B. 35 + 74 = 109
C. 35 − 39 = −4
D. 39 + 35 = 74
39 + 35 = 74
What is the unknown number?
? − 6 = 11
17
Which expression makes the number sentence true?
7 + 6 =?
a. 7 + 7
b. 8 + 6
c. 10 + 6
d. 10 + 3
d. 10 + 3