Subtraction Mad Minute

Front 1

3-1=

Back 1

2

Front 2

9-3=

Back 2

6

Front 3

6-2=

Back 3

4

Front 4

3-3=

Back 4

0

Front 5

5-0=

Back 5

5

Front 6

8-1=

Back 6

7

Front 7

3-2=

Back 7

1

Front 8

4-4=

Back 8

0

Front 9

5-2=

Back 9

3

Front 10

6-1=

Back 10

5

Front 11

2-2=

Back 11

0

Front 12

5-1=

Back 12

4

Front 13

4-3=

Back 13

1

Front 14

7-2=

Back 14

5

Front 15

8-3=

Back 15

5

Front 16

3-1=

Back 16

2

Front 17

7-4=

Back 17

3

Front 18

9-2=

Back 18

7

Front 19

6-0=

Back 19

6

Front 20

9-1=

Back 20

8

Front 21

1-1=

Back 21

0

Front 22

5-3=

Back 22

2

Front 23

4-1=

Back 23

3

Front 24

8-0=

Back 24

8

Front 25

7-3=

Back 25

4

Front 26

8-8=

Back 26

0

Front 27

9-4=

Back 27

5

Front 28

6-4=

Back 28

2

Front 29

7-1=

Back 29

6

Front 30

4-2=

Back 30

2