Simple Math

1-Digit Additions

100

5+5

10

200

3+4

7

300

4+9

13

400

9+9

18

500

7+8

15

2-Digit Subtraction

100

15-5

10

200

12-4

8

300

20-7

13

400

35-10

25

500

37-12

25

2-Digit Addition

100

20+20

40

200

25+30

55

300

14+15

29

400

32+44

76

500

12+18

30

2-Digit SubtractionRegrouping

100

40-8

32

200

44-9

35

300

50-16

34

400

31-16

15

500

34-17

17

2-Digit AdditionRegrouping

100

25+9

34

200

36+15

51

300

28+14

42

400

44+46

90

500

55+55

110