请用两种方法将1~9的9个数字不重复地写出其加法、减法、乘法三个等式

如题所述

第1个回答  2007-02-27
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2*3=6 8-7=1 4+5=9
3*2=6 1+7=8 9-4=5
第2个回答  2007-03-04
1 + 7 = 8
9 - 4 = 5
2 * 3 = 6

1 + 7 = 8
9 - 4 = 5
3 * 2 = 6

1 + 7 = 8
9 - 5 = 4
2 * 3 = 6

1 + 7 = 8
9 - 5 = 4
3 * 2 = 6

4 + 5 = 9
8 - 1 = 7
2 * 3 = 6

4 + 5 = 9
8 - 1 = 7
3 * 2 = 6

4 + 5 = 9
8 - 7 = 1
2 * 3 = 6

4 + 5 = 9
8 - 7 = 1
3 * 2 = 6

5 + 4 = 9
8 - 1 = 7
2 * 3 = 6

5 + 4 = 9
8 - 1 = 7
3 * 2 = 6

5 + 4 = 9
8 - 7 = 1
2 * 3 = 6

5 + 4 = 9
8 - 7 = 1
3 * 2 = 6

7 + 1 = 8
9 - 4 = 5
2 * 3 = 6

7 + 1 = 8
9 - 4 = 5
3 * 2 = 6

7 + 1 = 8
9 - 5 = 4
2 * 3 = 6

7 + 1 = 8
9 - 5 = 4
3 * 2 = 6

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第3个回答  2007-02-27
2*3=6 1+7=8 9-4=5
第4个回答  2007-02-27
5+3
9-1
2*4
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