题目内容
| 计算下面各题,能简便计算的要简便计算. 0.125×(8×0.8) | 9.43-(2.43+0.39) | (
| ||||||||||
|
| 20.3×16-4560÷15. |
(1)0.125×(8×0.8),
=0.125×8×0.8,
=1×0.8,
=0.8;
(2)9.43-(2.43+0.39),
=9.43-2.43-0.39,
=7-0.39,
=6.61;
(3)(
-
)÷
÷
,
=
÷
,
=
;
(4)
÷6+6÷
,
=
×
+6×6,
=36
;
(5)
×
+
÷4,
=
×
+
×
,
=
×(
+
),
=
;
(6)20.3×16-4560÷15,
=324.8-304,
=20.8.
=0.125×8×0.8,
=1×0.8,
=0.8;
(2)9.43-(2.43+0.39),
=9.43-2.43-0.39,
=7-0.39,
=6.61;
(3)(
| 1 |
| 2 |
| 1 |
| 5 |
| 3 |
| 4 |
| 3 |
| 5 |
=
| 3 |
| 10 |
| 9 |
| 20 |
=
| 2 |
| 3 |
(4)
| 1 |
| 6 |
| 1 |
| 6 |
=
| 1 |
| 6 |
| 1 |
| 6 |
=36
| 1 |
| 36 |
(5)
| 1 |
| 4 |
| 3 |
| 7 |
| 4 |
| 7 |
=
| 1 |
| 4 |
| 3 |
| 7 |
| 4 |
| 7 |
| 1 |
| 4 |
=
| 1 |
| 4 |
| 3 |
| 7 |
| 4 |
| 7 |
=
| 1 |
| 4 |
(6)20.3×16-4560÷15,
=324.8-304,
=20.8.
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