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脱式计算,能简算的要简算.17.4÷0.8÷1.251.8÷0.2÷0.324÷O.6+0.6÷2417.94÷3.9+5.3×0.4.
题目详情
脱式计算,能简算的要简算. 17.4÷0.8÷1.25 1.8÷0.2÷0.3 24÷O.6+0.6÷24 17.94÷3.9+5.3×0.4. |
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答案和解析
(1)17.4÷0.8÷1.25, =17.4÷(0.8×1.25), =17.4÷1, =17.4; (2)1.8÷0.2÷0.3, =1.8÷(0.2×0.3), =1.8÷0.06, =30; (3)24÷O.6+0.6÷24, =40+0.025, =40.025; (4)17.94÷3.9+5.3×0.4, =4.6+0.12, =4.72. |
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