2nd Ch 2.1 Basic Addition and Subtraction

Regroup Me

100

58 + 35 = 

93

200

37 + 29 =

66

300

16 + 27 = 

43

400

55 + 25 =

80

500

19 + 69 = 

88

Don't Regroup me

100

25 + 10=

35

200

65 + 14=

79

300

25 + 11=

36

400

36 + 12=

48

500

40 + 30=

70

Borrow Me

100

41 - 36 = 

5

200

73 - 44 = 

29

300

70 - 5 = 

65

400

52 - 26 = 

26

500

63 - 28 =

35

Borrow some more

100

20 - 11 =

9

200

21 - 18 =

3

300

46 - 18 = 

28

400

81 - 59 =

22

500

90 - 15 = 

75

3 Digit Addition & Subtraction

100

100 + 200 =

300

200

530 - 220 =

310

300

700 - 300 =

400

400

126 + 345 =

471

500

BONUS: 4 Digit Addition 7546 + 9743

17289