Page 63 - บทที่ 1

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7 X 2 13 - 7 8 + 9

12 - 8 4 + 8 2x7

9 + 7 8 - 5 5 + 3

3 X 8 6 x6 4 - 1

2 x6 3 - 2 11-2

17 - 9 5 + 5 8 + 3

5 + 6 7 X 8 9x7

13 - 5 10 - 6 8-4

6 + 2 7 + 2 4 + 1

16 - 8 14 - 5 5x5

9 x4 9 X 1 12-5

8 + 8 4 + 7 6-3

5 - 2 3 X 0 3 + 2

3 + 6 10 - 3 11-8

8 X 4 4 X 5 6 + 4

15 - 9 9 + 7 9x5

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4 X 6 7 + 6 Qunw
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