Addition Without Regrouping
Subtraction Without Regrouping
Addition With Regrouping
Subtraction With Regrouping
MYSTERY!!!!
100

10 + 15 =

25

100

10 - 10 =

0

100

15 + 27 =

42

100

37 - 28 =

9

100

10 + 75 =

85

200

29 + 15

44

200

85 - 35 =

50

200

54 + 77 =

131

200

32 - 29 = 

3

200

90 - 80 =

70

300

192 + 103 =

295

300

97 - 24 =

73

300

809 + 234

1043

300

36 - 18 = 

18

300

443 + 268 =

711

400

456 + 402

858

400

378 - 227 =

151
400

598 + 599 =

1197


400

75 - 16 =

59

400

70 - 63 =

7

500

360 + 330 =

690

500

690 - 120 =

570

500

230 + 780 =

1010

500

92 - 89 =

3

500

315 + 287 =

602

M
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