题目内容
用你喜欢方法计算.
101001-45×623
7.63×9.9+0.763
(
-
)÷(
+
)
×[
-(
-
)].
101001-45×623
7.63×9.9+0.763
(
| 2 |
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| 1 |
| 2 |
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| 8 |
| 9 |
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| 16 |
| 1 |
| 4 |
(1)101001-45×623,
=101001-28035,
=72966;
(2)7.63×9.9+0.763,
=7.63×9.9+7.63×0.1,
=7.63×(9.9+0.1),
=7.63×10,
=76.3;
(3)(
-
)÷(
+
),
=
÷
,
=
;
(4)
×[
-(
-
)],
=
×[
-
],
=
×
,
=
.
=101001-28035,
=72966;
(2)7.63×9.9+0.763,
=7.63×9.9+7.63×0.1,
=7.63×(9.9+0.1),
=7.63×10,
=76.3;
(3)(
| 2 |
| 3 |
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 3 |
=
| 1 |
| 6 |
| 13 |
| 12 |
=
| 2 |
| 13 |
(4)
| 8 |
| 9 |
| 3 |
| 4 |
| 7 |
| 16 |
| 1 |
| 4 |
=
| 8 |
| 9 |
| 3 |
| 4 |
| 3 |
| 16 |
=
| 8 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 2 |
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