Unknown Number
Which number can replace the ? to make the number sentence true?
7 + ? = 13
a. 7
b. 6
c. 5
b. 6
Julie has 27 crayons in her pencil box. Katie gave her some more crayons. Now Julie has 52 crayons.
How many crayons did Katie give Julie?
a. 77 crayons
b. 35 crayons
c. 25 crayons
d. 43 crayons
c. 25 crayons
Liam and Noah went to the aquarium. Liam saw 12 fish and Noah saw 19 fish. Which equation shows how to find how many more fish Noah saw than Liam?
a. ? + 19 = 12
b. 12 + 19 = ___
c. 12 − ___ = 19
d. 19 − 12 = ___
d. 19 − 12 = ___
Which number can go in the blanks to make all the number sentences true?
3 + ___ = 10
11 - 4 = ___
___ - 1 = 6
a. 13
b. 8
c. 7
c. 7
There are 44 ants sitting in an ant hill. Then 23 of them ran to a log.
How many ants are still left in the ant hill?
a. 21 ants
b. 12 ants
c. 31 ants
d. 19 ants
a. 21 ants
Amy borrowed 45 necklaces from her grandma. The next day, she returned 29 of them.
Which number sentence shows how many necklaces Amy still has?
a. 43 + 29 = 64
b. 45 + 29 = 74
c. 45 - 29 = 26
d. 45 - 29 = 16
b. 45 + 29 = 74
Which number would make the number sentence true?
19 - 5 = ___
A. 14
B. 24
C. 13
A. 14
Jackie has 53 seashells in her collection. At the beach, she collected 29 more seashells.
How many seashells does Jackie have now?
a. 72 seashells
b. 82 seashells
c. 24 seashells
b. 82 seashells
Tommy and Sean went to the park to birdwatch. Tommy saw 9 birds and Sean saw 15 birds. Which equation shows how to find how many more birds Sean saw than Tommy?
a. 15 + 9 = ___
b. 9 - ___ = 15
c. 15 - 9 = _____
d. ____ + 15 = 9
c. 15 - 9 = _____
Which number goes in the blank to make the number sentence true?
15 = ____ + 7
8
John spent 21 minutes on his bike. Then he spent 28 minutes playing with his friends in the yard. Which number sentence can be used to find the total amount of time John spent outside?
a. ? + 21 = 28
b. 28 - 21 = ?
c. 28 + ? = 21
d. 28 + 21 = ?
d. 28 + 21 = ?
Marcus has 34 stickers in his notebook. His friend gave him some more stickers. Now Marcus has 61 stickers.
How many stickers did his friend give Marcus?
a. 27 stickers
b. 37 stickers
c. 18 stickers
d. 29 stickers
a. 27 stickers
Which number can replace the ? to make the number sentence true?
? - 14 = 3
a. 11
b. 17
c. 15
b. 17
Carol has rings in her jewelry box. 34 of them are gold and 47 of them are silver. How many total rings does Carol have?
a. 71 rings
b. 13 rings
c. 72 rings
d. 81 rings
d. 81 rings
Evan had 62 trading cards. He gave 38 of them to his friend.
Which number sentence shows how many trading cards Evan still has?
a. 62 − 38 = 34
b. 62 + 38 = 100
c. 62 − 38 = 24
d. 38 − 62 = 24
c. 62 − 38 = 24