题目内容
(2
×
+2
×6.2-5.8×2
-
÷
)×
.
| 2 |
| 9 |
| 4 |
| 5 |
| 2 |
| 9 |
| 2 |
| 9 |
| 1 |
| 5 |
| 9 |
| 20 |
| 9 |
| 20 |
(2
×
+2
×6.2-5.8×2
-
÷
)×
,
=(2
×0.8+2
×6.2-5.8×2
-0.2×2
)×
,
=[(0.8+6.2)-(5.8+0.2)]×2
×
,
=(7-6)×(
×
),
=1×1,
=1.
| 2 |
| 9 |
| 4 |
| 5 |
| 2 |
| 9 |
| 2 |
| 9 |
| 1 |
| 5 |
| 9 |
| 20 |
| 9 |
| 20 |
=(2
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 2 |
| 9 |
| 9 |
| 20 |
=[(0.8+6.2)-(5.8+0.2)]×2
| 2 |
| 9 |
| 9 |
| 20 |
=(7-6)×(
| 20 |
| 9 |
| 9 |
| 20 |
=1×1,
=1.
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