Unknown Number
What number can replace the ? to make the number sentence true?
? - 4 = 12
16
Mia had 54 crayons. Her teacher gave her some more. Now she has 72 crayons.
How many crayons did her teacher give her?
18
The students in a second grade class checked out 85 books from the library. The next week, they returned 52 of those books.
Which number sentence shows how many books the students still have checked out?
a. 85 + 52 = 137
b. 85 + 52 = 37
c. 85 - 52 = 33
d. 85 - 52 = 23
c. 85 - 52 = 33
Liam has 47 stickers. Noah has 32 stickers. How many more stickers does Liam have than Noah?
15 stickers
There are 38 bees in the beehive. 16 bees flew away. How many bees are left in the beehive?
22 bees
Which number can replace the X to make the number sentence true?
X - 7 = 8
15
Leo had 18 toy cars. His dad bought him some more. Now he has 35 toy cars.
How many toy cars did his dad buy?
17
On a trip to the zoo, Andrew saw 13 zebras. Justin saw 7 giraffe. Which equation shows how to find how many more zebras were seen than giraffe?
a. 13 + 7 = ?
b. 13 - 7 = ?
c. 13 + ? = 7
d. 7 - 13 = ?
b. 13 - 7 = ?
There are 68 red balloons and 45 blue balloons.
How many fewer blue balloons are there than red balloons?
23
There are 19 students on the football field. Then, 13 run off the field. How many students are left on the football field?
6 students
Which number goes in the ? to make the number sentence true?
13 = ? + 13
0
Sofia had 63 marbles. After her cousin gave her some, she had 80 marbles.
How many marbles did her cousin give her?
17
A bird flew 46 miles one day and 34 miles the next day. Which number sentence shows the number of miles the bird flew in two days?
a. ? + 46 = 34
b. 46 + ? = 34
c. 34 + ? = 46
d. 46 + 34 = ?
d. 46 + 34 = ?
A library has 56 fiction books and 29 nonfiction books.
How many more fiction books are there than nonfiction books?
27
Ms Agnew has 64 papers on her desk. Ms Battle put 28 more papers on her desk. How many papers are on Ms Agnew's desk now?
92
Which number can replace the ? to make the number sentence true?
5 + ? = 17
12
Jamal had 25 stickers. His friend gave him some more. Now Jamal has 47 stickers.
How many stickers did his friend give him?
22
Use this link: https://docs.google.com/presentation/d/11agZizM3FKqZ4MoxoWhNrZwfi11a1W23hvCxdcqPFUc/edit?usp=sharing
d. Jax and Tom have 13 pencils because 8+5=13
Maya read 34 pages on Monday and 58 pages on Tuesday. How many more pages did she read on Tuesday than on Monday?
24
Stassi is collecting shells. 27 of the shells are smooth. 48 of the shells are bumpy. How many shells did Stassi collect in all?
75 shells
Which number can go in the blanks to make all of the number sentences true?
4 + ____ = 10
8 - 2 = ____
____ - 2 = 4
6
Kristen has 42 colored pencils. Katie gives her some more. Now she has 60 colored pencils. How many colored pencils did Katie give her?
18
Ella has 63 crayons. Sam has 28 crayons.
How many more crayons does Ella have than Sam?
a. 63 + 28 = ?
b. 63 + ? = 28
c. 63 - 28 = ?
d. 28 - 63 = ?
c. 63 - 28 = ?
A toy store has 72 toy cars and 48 dolls.
How many fewer dolls are there than toy cars?
24
Ant farm A has 25 ants. Ant farm B has 37 ants. How many ants are there all together?
62 ants