题目内容
下面各题怎样算简便就怎样算
(
-
)÷
+
35÷[(
-
)×3]
3.6×98+36×0.2
9.57-(2.57+3.38)-2.62.
(
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2 |
| 5 |
| 6 |
35÷[(
| 5 |
| 6 |
| 2 |
| 3 |
3.6×98+36×0.2
9.57-(2.57+3.38)-2.62.
(1)(
-
)÷
+
=
×2+
,
=
+
,
=1;
(2)35÷[(
-
)×3]
=35÷[
×3-
×3],
=35÷[
-2],
=35÷
,
=70;
(3)3.6×98+36×0.2
=3.6×98+3.6×2,
=3.6×(98+2),
=3.6×100,
=360;
(4)9.57-(2.57+3.38)-2.62
=9.57-2.57-(3.38+2.62),
=7-6,
=1.
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 2 |
| 5 |
| 6 |
=
| 1 |
| 12 |
| 5 |
| 6 |
=
| 1 |
| 6 |
| 5 |
| 6 |
=1;
(2)35÷[(
| 5 |
| 6 |
| 2 |
| 3 |
=35÷[
| 5 |
| 6 |
| 2 |
| 3 |
=35÷[
| 5 |
| 2 |
=35÷
| 1 |
| 2 |
=70;
(3)3.6×98+36×0.2
=3.6×98+3.6×2,
=3.6×(98+2),
=3.6×100,
=360;
(4)9.57-(2.57+3.38)-2.62
=9.57-2.57-(3.38+2.62),
=7-6,
=1.
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