Basic Addition and Subtraction

Single Digit Addition

100

4+0=

4

200

8+1=

9

300

9+4=

13

400

7+7=

14

500

8+2=

10

Double Digit Addition

100

23+23=

46

200

19+20=

39

300

71+23

94

400

54+43=

97

500

76+12=

88

Single Digit Subtraction

100

6-1=

5

200

8-8=

0

300

9-5=

4

400

3-1=

2

500

8-7=

1

Double Digit Subtraction

100

23-10=

13

200

46-23=

23

300

78-27=

51

400

97-61=

36

500

98-87=

11

Regrouping

100

54+28=

82

200

76-19=

57

300

31+49=

80

400

67-18=

49

500

62+38=

100