Show:
Addition
Addition with Regrouping
Subtraction
Subtraction With Regrouping
100

68 + 21

89

100

55 + 36

91

100

98 - 11

87

100

45 - 36

9

200

114 + 35

149

200

278 + 58

336

200

164 - 53

111

200

54 -37

17

300

226 + 400

626

300

432 + 180

612

300

857 - 132

725

300

65 -19

46

400

411 + 167

578

400

694 + 220

914

400

298 - 133

165

400

67 -28

39

500

842 + 113

955

500

597 + 313

910

500

543 - 422

121

500

93 - 56

37