Addition and Subtraction

Addition without Regrouping

100

20+13

33

200

33+26

59

300

85+24

109

400

93+56

149

500

66+52

118

Addition with Regrouping

100

21+39

60

200

43+27

70

300

55+55

110

400

74+47

121

500

89+45

134

Subtraction without Regrouping

100

89-20

69

200

69-24

45

300

74-13

61

400

95-81

14

500

58-24

34

Subtraction with Regrouping

100

71-62

9

200

93-75

18

300

60-24

36

400

88-29

59

500

42-19

23