Show:
Adding Two-Digit Numbers
Subtracting Two-Digit Numbers (No re-grouping)
Subtracting Two-Digit Numbers (Regrouping)
Adding Three-Digit Numbers
Subtracting Three-Digit Numbers
100

43+23

66

100

65-30

35

100

43-29

14

100

562+291

853

100

946-331

615

200

77+13

90

200

43-20

23

200

94-17

77

200

496+562

1058

200

793-247

546

300

12+56

68

300

78-19

59

300

64-18

46

300

834+540

1374

300

449-129

320

400

14+17

31

400

94-22

72

400

91-35

56

400

739+250

989

400

819-327

392

500

65+19

84

500

77-53

24

500

72-47

25

500

734+192

926

500

618-482

136