Mental Addition
Mental Subtraction
Column Adding
Stacked Subtraction
Multiplication
100

25+26

51

100

56-8

48

100

100+98+3

201

100

150-50

100

100

8x8

64

200

58+62

120

200

88-65

23

200

345+46+18

409

200

234-80

154

200

11x7

77

300

103+114

217

300

108-96

12

300

345+245+67+8

665

300

555-106

449

300

25x5

125

400

564+324

888

400

555-333

222

400

678+789+223

1,690

400

800-435

365

400

42x9

378

500

986+440

1,426

500

999-880

119

500

1,222+345+100+67+4

1,738

500

8765-5673

3092

500

134x6

804

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