Adding 2 digits
Subtracting 2 digits
Adding 2 digit (regrouping)
Subtracting 2 digit (regrouping)
Adding/subtracting 3-digits
100

23+45

68

100

98-52

46

100

53+29

82

100

92-29

121

100

158+111

269

200

84+15

99

200

55-44

11

200

28+39

67

200

56-39

17

200

459-348

111

300

16+42

58

300

88-27

61

300

79+6

85

300

55-27

28

300

235+532

767

400

45+14

59

400

76-56

20

400

26+27

53


400

33-16

17

400

555+232

787

500

11+11

22

500

99-62

37

500

69+39

108

500

60-17

43

500

888-222

444

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