Fast Facts-Addition
Base 10
Unknown Equations
Word Problems
Fast Facts-Subtraction
100

2+2=?

4

100

On your white boards, solve the problem 20+35 using place value blocks.

20+35=55

100

Fill in the equation to make it true:

6+?=15

9

100

At the animal park there were 15 dogs and 13 cats. How many animals were at the park in all?

15+13=28

100

4-1=?

3

200

3+4=?

7

200

On your white boards, solve the problem 56+43 using place value blocks.

56+43=99

200

Fill in the equation to make it true:

?+5=12

7

200

Peter had 65 marbles. He gave Mark 41 marbles. How many marbles does Peter have now?

65-41=24

200

7-5=?

2

300

6+4=?

10

300

On your white boards, solve the problem 68-27 using place value blocks.

68-37=31

300

Fill in the equation to make it true:

16-?=6

10

300
Tess picked 12 flowers on Monday morning. She picked some more in the afternoon. If Tess picked 27 flowers in all, how many did she pick in the afternoon? 

27-12=15

300

8-4=?

4

400

8+9=?

17

400

On your white boards, solve the problem 75-24 using place value blocks.

75-24=51

400

Fill in the equation to make it true:

14-?=12

2

400

Jess gave out 21 cookies to the girls in her class. She then gave out some cookies to the boys in her class. If jess gave out 45 cookies in all, how many cookies did she give to the boys?

45-21=24

400

9-4=?

5

500

11+11=?

22

500

On your white boards, solve the problem 73-49 using place value blocks.

73-49=24

500

Fill in the equation to make it true:

42-?=34

8

500

Joey is saving money to buy a new drum set that costs $90. If he has already saved $67, how much more money does he need to buy the drum set?

90-67=23

500

10-7=?

3

M
e
n
u