Page 109 - บทที่ 1
P. 109
13 - 7 = 4 + 2 = 3x8 =
3 + 2 = 5 + 6 = 9x7 =
9 + 6 =
4x8 =
7x2 = CO CO 11-7 =
I I
9 + 8 = 1x9 =
CO -vl
II
II
10 - 5 = 3x7 = 1 + 2 =
8 + 3 = 11 - 2 = 7 + 8 =
9x4 = 13 - 9 =
2 + 4 = 3 + 7 = 8x5 =
7 + 3 = 9x2 = 9x8 =
IIII
6x2 = 6x9 = 4 + 3 =
CO CO
11 - 3 = 0 + 7 = 6 + 8 =
1 1
CO CJ)
5x9 = 4 - 1 = 5 - 2 =
12 - 7 = 11 - 5 = 7x5 =
2 + 9 = 3 + 9 = 4x4 =
7x7 = 5x0 = 14 - 5 =
^ o a
15 - 6 = 8 + 5 = unvi 1U1V1
U1^ Qvnvi
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