Missing Number

Solve (Addition/Subtraction)

100

14-6

8

200

12-9

3

300

8+9

17

400

6+7

13

500

9 + 8

17

Find Missing Number (addition)

100

Find the missing addend:

? + 5 = 14

? = 9

200

Find the missing addend:

? + 6 = 19

? = 13

300

Find the missing addend:

? + 7 = 12

? = 5

400

Find the missing addend

? + 5 = 11

? = 6

500

? + 12 = 22

? = 10

Find Missing Number (Subtraction)

100

Find the missing number:

 9 - ? = 5

? = 4

200

Find the missing number:

18 - ? = 11

?  =  7

300

8 - ?  = 5 

? = 3

400

17 - ? = 10

? = 7

500

12 - ? = 4

? = 8