Show:
Addition Without Regrouping
Addition With Regrouping
Subtraction Without Regrouping
Subtraction With Regrouping
100

62 + 3

65

100

66 + 7

73

100

48 - 3

45

100

52 - 9 

43
200

83 + 5

88

200

33 + 18

51

200

98 - 7

91

200

73 - 6

67

300

81 + 7

88

300

29 + 24

53

300

60 - 40

20

300

54 - 38

16

400

36 + 60

96

400

8 + 47

55

400

87 - 62

25

400

71 - 56

15

500

76 + 22

98

500

76 + 17

93

500

58 - 24

34
500

70 - 29 

41