Adding and Subtracting

Adding within 100

100

7 + 15

22

200

42+19

61

300

53+17

70

400

45+16

71

500

69+28

97

Subtracting within 100

100

17-15

2

200

21-7

14

300

33-17

16

400

45-36

9

500

81-35

46

Adding within 1,000

100

113+112

225

200

118+113

231

300

236+448

684

400

545+356

901

500

392+198

590

Subtracting within 1,000

100

432-221

211

200

331-119

212

300

412-113

299

400

547-395

152

500

576-489

87

Mixed

100

8+14

22

200

31+15+17

63

300

48+49

97

400

959-766

193

500

386+287

673