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计算下面各题,能简算的要简算.125×9.3×0.0813.7×102-2×13.7(6.7+6.7+6.7+6.7)×2.54.5÷[(27.8-25.3)×0.4]0.096÷0.01+(75-28÷112)90.8-(7.03-2.17)×4.5.
题目详情
计算下面各题,能简算的要简算. 125×9.3×0.08 | 13.7×102-2×13.7 |
(6.7+6.7+6.7+6.7)×2.5 | 4.5÷[(27.8-25.3)×0.4] |
0.096÷0.01+(75-28÷112) | 90.8-(7.03-2.17)×4.5. |
▼优质解答
答案和解析
(1)125×9.3×0.08,
=125×0.08×9.3,
=10×9.3,
=93;
(2)13.7×102-2×13.7,
=13.7×(102-2),
=13.7×100,
=1370;
(3)(6.7+6.7+6.7+6.7)×2.5,
=6.7×4×2.5,
=6.7×(4×2.5),
=6.7×10,
=67;
(4)4.5÷[(27.8-25.3)×0.4],
=4.5÷[2.5×0.4],
=4.5÷1,
=4.5;
(5)0.096÷0.01+(75-28÷112),
=0.096÷0.01+(75-0.25),
=0.096÷0.01+74.75,
=9.6+74.75,
=84.35;
(6)90.8-(7.03-2.17)×4.5,
=90.8-4.86×4.5,
=90.8-21.87,
=68.93.
=125×0.08×9.3,
=10×9.3,
=93;
(2)13.7×102-2×13.7,
=13.7×(102-2),
=13.7×100,
=1370;
(3)(6.7+6.7+6.7+6.7)×2.5,
=6.7×4×2.5,
=6.7×(4×2.5),
=6.7×10,
=67;
(4)4.5÷[(27.8-25.3)×0.4],
=4.5÷[2.5×0.4],
=4.5÷1,
=4.5;
(5)0.096÷0.01+(75-28÷112),
=0.096÷0.01+(75-0.25),
=0.096÷0.01+74.75,
=9.6+74.75,
=84.35;
(6)90.8-(7.03-2.17)×4.5,
=90.8-4.86×4.5,
=90.8-21.87,
=68.93.
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