Adding two single-digit numbers - sum 9 or less
The number of all possible operations is equal to 56
Solve.

1 + 6 = __________

2 + 3 = __________

0 + 8 = __________

3 + 1 = __________

3 + 6 = __________

1 + 1 = __________

1 + 8 = __________

4 + 1 = __________

2 + 4 = __________

5 + 2 = __________

5 + 0 = __________

9 + 0 = __________

6 + 2 = __________

8 + 1 = __________

1 + 2 = __________

0 + 7 = __________

3 + 4 = __________

1 + 5 = __________

4 + 5 = __________

7 + 0 = __________

5 + 4 = __________

2 + 0 = __________

0 + 9 = __________

4 + 0 = __________

4 + 2 = __________

0 + 3 = __________

3 + 3 = __________

1 + 7 = __________

1 + 7 = __________

0 + 5 = __________

5 + 3 = __________

4 + 3 = __________

2 + 7 = __________

6 + 1 = __________

6 + 3 = __________

8 + 0 = __________

3 + 5 = __________

1 + 0 = __________

1 + 3 = __________

2 + 2 = __________

1 + 4 = __________

2 + 5 = __________

4 + 4 = __________

2 + 6 = __________

0 + 0 = __________

7 + 2 = __________

6 + 0 = __________

7 + 1 = __________

5 + 1 = __________

0 + 4 = __________

0 + 1 = __________

3 + 2 = __________

3 + 0 = __________

0 + 6 = __________

2 + 1 = __________

0 + 2 = __________




Adding two single-digit numbers - sum 9 or less
The number of all possible operations is equal to 56
The answer.

1 + 6 = 7

2 + 3 = 5

0 + 8 = 8

3 + 1 = 4

3 + 6 = 9

1 + 1 = 2

1 + 8 = 9

4 + 1 = 5

2 + 4 = 6

5 + 2 = 7

5 + 0 = 5

9 + 0 = 9

6 + 2 = 8

8 + 1 = 9

1 + 2 = 3

0 + 7 = 7

3 + 4 = 7

1 + 5 = 6

4 + 5 = 9

7 + 0 = 7

5 + 4 = 9

2 + 0 = 2

0 + 9 = 9

4 + 0 = 4

4 + 2 = 6

0 + 3 = 3

3 + 3 = 6

1 + 7 = 8

1 + 7 = 8

0 + 5 = 5

5 + 3 = 8

4 + 3 = 7

2 + 7 = 9

6 + 1 = 7

6 + 3 = 9

8 + 0 = 8

3 + 5 = 8

1 + 0 = 1

1 + 3 = 4

2 + 2 = 4

1 + 4 = 5

2 + 5 = 7

4 + 4 = 8

2 + 6 = 8

0 + 0 = 0

7 + 2 = 9

6 + 0 = 6

7 + 1 = 8

5 + 1 = 6

0 + 4 = 4

0 + 1 = 1

3 + 2 = 5

3 + 0 = 3

0 + 6 = 6

2 + 1 = 3

0 + 2 = 2