题目内容
| 能简算的要简算. 195÷(1-70%)÷65% | 0.8×2.7+7.3÷125% | ||||||||
(85%÷5+0.83)÷
| 25%×
|
(1)195÷(1-70%)÷65%
=195÷(1-0.7)÷0.65
=195÷0.3÷0.65
=650÷0.65
=1000;
(2)0.8×2.7+7.3÷125%
=0.8×2.7+7.3÷1.25
=2.16+5.84
=8;
(3)(85%÷5+0.83)÷
=(0.85÷5+0.83)÷
=(0.17+0.83)÷
=1÷
=1
;
(4)25%×
+
×
=
×
+
×
=
×(
+
)
=
×1
=
.
=195÷(1-0.7)÷0.65
=195÷0.3÷0.65
=650÷0.65
=1000;
(2)0.8×2.7+7.3÷125%
=0.8×2.7+7.3÷1.25
=2.16+5.84
=8;
(3)(85%÷5+0.83)÷
| 8 |
| 10 |
=(0.85÷5+0.83)÷
| 8 |
| 10 |
=(0.17+0.83)÷
| 8 |
| 10 |
=1÷
| 8 |
| 10 |
=1
| 1 |
| 4 |
(4)25%×
| 13 |
| 31 |
| 1 |
| 4 |
| 18 |
| 31 |
=
| 1 |
| 4 |
| 13 |
| 31 |
| 1 |
| 4 |
| 18 |
| 31 |
=
| 1 |
| 4 |
| 13 |
| 31 |
| 18 |
| 31 |
=
| 1 |
| 4 |
=
| 1 |
| 4 |
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