Page 115 - บทที่ 1
P. 115
3 - 2 = 5x4 = 3 + 2
4x5 = 8 - 3 = 7 + 8
3 + 7 = 6 + 7 = 3x2
4 + 3 = 7x2 = 9-6
6x9 = 9x4 = 5 + 7
6 + 5 = 3 + 1 = 3x9
12 - 6 = 9 - 1 = 8 + 5
8 - 7 = 17 - 8 = 12-5
1 + 2 = 7x7 = 2 + 5
8x3 = 11 - 6 = 15-8
10 - 6 = 3 + 8 = 2x9
3x7 = 3 - 2 = 13-5
7 + 7 = 2 + 1 = 5x3
5x6 = 5 + 6 = 9 + 8
15 - 9 = 13 - 7 = 7 + 5
6x2 = 6x0 = 12-4
7x9 = 12 - 3 = Qt4nvi
iQjnvlH un^
114