Show:
Addition
Subtraction
Missing Number
+/- 10
100

Solve the math problem:

12+___= 17

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

5

100

Solve the math problem:

15-____=11

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

4

100

What number is missing?  14,13, ____

12

100

15+10=

25 

200

Solve the math problem:

___+6= 12


<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

6

200

Solve the math problem:

10-___=4

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

6

200

What number is missing? 99, ____, 101

100

200

28-10=

18

300

Solve the math problem:

8+7=


<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

15

300

Solve the math problem:

13-6=

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

7

300

What number is missing? 63, ___, 61

62

300

54-10=

44

400

Solve the math problem:

8+___=11


<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

3

400

Solve the math problem:

15-___=5

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

10

400

What number is missing?____,20, 21

19

400

43+10=

53

500

Solve the math problem:

____+7=17


<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

10

500

Solve the math problem:

18-5=

<1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18>

13

500

What number is missing? 68,69, ____

70

500

78-10=

68