arrays

Front

3+3+3+3+3=

Back

15

Front

5X5=

Back

25

Front

9+9+9=

Back

27

Front

6+6+6+6 is the same as

Back

6x4

Front

5x2 is the same as

Back

5+5

Front

7+7+7+7+7

Back

7x5

Front

1+1+1+1+1+1+1 is the same as

Back

7x1

Front

8x2

Back

8+8