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(1)(30-19.8)×0.6+31.2(2)[10-(6+3.03)]×1.01(3)73.6×27+73.6×73(4)49.2-0.5×0.5-8.75(5)(291-38×3.5-35.5)÷3.5(6)12.5×0.56×0.4×0.8×250
题目详情
(1)(30-19.8) ×0.6+31.2 | (2)[10-(6+3.03)] ×1.01 |
(3)73.6 ×27+73.6 ×73 | (4)49.2-0.5 ×0.5-8.75 |
(5)(291-38 ×3.5-35.5) ÷3.5 | (6)12.5 ×0.56 ×0.4 ×0.8 ×250 |
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答案和解析
(1)(30-19.8) ×0.6+31.2 =10.2×0.6+31.2 =6.12+31.2 =37.32 | (2)[10-(6+3.03)] ×1.01 =[10-9.03]×1.01 =0.97×1.01 =0.9797 |
(3)73.6 ×27+73.6 ×73 =73.6×(27+73) =73.6×100 =7360 | (4)49.2-0.5 ×0.5-8.75 =49.2-0.25-8.75 =49.2-(0.25+8.75) =49.2-9 =40.2 |
(5)(291-38 ×3.5-35.5) ÷3.5 =(291-133-35.5)÷3.5 =122.5÷3.5 =35 | (6)12.5 ×0.56 ×0.4 ×0.8 ×250 =(12.5×0.8)×(0.4×250)×0.56 =10×100×0.56 =560 |
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