题目内容
脱式计算
51.6÷[(3
-1.25)×
]
(
-
)÷(
+
)
51.6÷[(3
| 2 |
| 5 |
| 4 |
| 5 |
(
| 5 |
| 6 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 6 |
(1)51.6÷[(3
-1.25)×
],
=51.6÷[(3.4-1.25)×
],
=51.6÷[2.15×
],
=51.6÷1.72,
=30;
(2)(
-
)÷(
+
),
=
÷
,
=
×
,
=
.
| 2 |
| 5 |
| 4 |
| 5 |
=51.6÷[(3.4-1.25)×
| 4 |
| 5 |
=51.6÷[2.15×
| 4 |
| 5 |
=51.6÷1.72,
=30;
(2)(
| 5 |
| 6 |
| 3 |
| 4 |
| 1 |
| 4 |
| 1 |
| 6 |
=
| 1 |
| 12 |
| 5 |
| 12 |
=
| 1 |
| 12 |
| 12 |
| 5 |
=
| 1 |
| 5 |
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