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脱式计算38×4÷38×4(36+14)×141-213÷813-3425%×32+14×6860×14÷(1-25%)240×(1-20%)-50×20%
题目详情
脱式计算
| (36+
| 1-
| ||||||||||||||
25%×32+
| 60×
| 240×(1-20%)-50×20% |
▼优质解答
答案和解析
(1)
×4÷
×4
=(
÷
)×(4×4)
=1×16
=16;
(2)(36+
)×
=36×
+
×
=9+
=9
;
(3)1-
÷
-
=1-
-
=1-(
+
)
=1-1
=0;
(4)25%×32+
×68
=0.25×32+0.25×68
=0.25×(32+68)
=0.25×100
=25;
(5)60×
÷(1-25%)
=60×
÷0.75
=15÷0.75
=20;
(6)240×(1-20%)-50×20%
=240×0.8-50×20%
=192-10
=182.
| 3 |
| 8 |
| 3 |
| 8 |
=(
| 3 |
| 8 |
| 3 |
| 8 |
=1×16
=16;
(2)(36+
| 1 |
| 4 |
| 1 |
| 4 |
=36×
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
=9+
| 1 |
| 16 |
=9
| 1 |
| 16 |
(3)1-
| 2 |
| 13 |
| 8 |
| 13 |
| 3 |
| 4 |
=1-
| 1 |
| 4 |
| 3 |
| 4 |
=1-(
| 1 |
| 4 |
| 3 |
| 4 |
=1-1
=0;
(4)25%×32+
| 1 |
| 4 |
=0.25×32+0.25×68
=0.25×(32+68)
=0.25×100
=25;
(5)60×
| 1 |
| 4 |
=60×
| 1 |
| 4 |
=15÷0.75
=20;
(6)240×(1-20%)-50×20%
=240×0.8-50×20%
=192-10
=182.
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