题目内容
下面各题,怎样简便就怎样算.
÷7+
×
×
+
÷
.
| 8 |
| 13 |
| 1 |
| 7 |
| 6 |
| 13 |
| 1 |
| 2 |
| 2 |
| x |
| 9 |
| 10 |
| 9 |
| 20 |
(1)
| 8 |
| 13 |
| 1 |
| 5 |
| 6 |
| 13 |
=
| 8 |
| 13 |
| 1 |
| 5 |
| 1 |
| 5 |
| 6 |
| 13 |
=(
| 8 |
| 13 |
| 6 |
| 13 |
| 1 |
| 5 |
=
| 14 |
| 13 |
| 1 |
| 5 |
=
| 2 |
| 13 |
(2)
| 1 |
| 2 |
| 2 |
| 5 |
| 9 |
| 10 |
| 9 |
| 20 |
=
| 1 |
| 5 |
=2
| 1 |
| 5 |
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题目内容
| 8 |
| 13 |
| 1 |
| 7 |
| 6 |
| 13 |
| 1 |
| 2 |
| 2 |
| x |
| 9 |
| 10 |
| 9 |
| 20 |
| 8 |
| 13 |
| 1 |
| 5 |
| 6 |
| 13 |
| 8 |
| 13 |
| 1 |
| 5 |
| 1 |
| 5 |
| 6 |
| 13 |
| 8 |
| 13 |
| 6 |
| 13 |
| 1 |
| 5 |
| 14 |
| 13 |
| 1 |
| 5 |
| 2 |
| 13 |
| 1 |
| 2 |
| 2 |
| 5 |
| 9 |
| 10 |
| 9 |
| 20 |
| 1 |
| 5 |
| 1 |
| 5 |