题目内容
| 脱式计算,能简便的要简算. 57.5-3.25-16.75 | 125×3.2×25 |
| ||||
| 6760÷13+17×25 | 4.82-5.2÷0.8×0.6 | 35÷
|
(1)57.5-3.25-16.75,
=57.5-(3.25+16.75),
=57.5-20,
=37.5;
(2)125×3.2×25,
=125×8×0.4×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(3)
×16.31-2.31÷
,
=
×16.31-2.31×
,
=
×(16.31-2.31),
=
×14,
=10;
(4)6760÷13+17×25,
=520+425,
=945;
(5)4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92;
(6)35÷
×1-
,
=35×
×1-
,
=40-
,
=39
.
=57.5-(3.25+16.75),
=57.5-20,
=37.5;
(2)125×3.2×25,
=125×8×0.4×25,
=(125×8)×(0.4×25),
=1000×10,
=10000;
(3)
| 5 |
| 7 |
| 7 |
| 5 |
=
| 5 |
| 7 |
| 5 |
| 7 |
=
| 5 |
| 7 |
=
| 5 |
| 7 |
=10;
(4)6760÷13+17×25,
=520+425,
=945;
(5)4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92;
(6)35÷
| 7 |
| 8 |
| 2 |
| 7 |
=35×
| 8 |
| 7 |
| 2 |
| 7 |
=40-
| 2 |
| 7 |
=39
| 5 |
| 7 |
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