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(1)++-(2)9.81×0.1+0.5×98.1+0.049×981(3)(-)÷(1-×)(4)0.5×2.5×96×0.125
题目详情
(1)![]() ![]() ![]() ![]() | (2)9.81×0.1+0.5×98.1+0.049×981 |
(3)(![]() ![]() ![]() ![]() | (4)0.5×2.5×96×0.125 |
▼优质解答
答案和解析
(1)![]() ![]() ![]() ![]() | (2)9.81×0.1+0.5×98.1+0.049×981 |
(3)(![]() ![]() ![]() ![]() | (4)0.5×2.5×96×0.125 |
(1)原式=![]() ![]() ![]() ![]() =1+ ![]() =1 ![]() | (2)原式=9.81×(0.1+5+4.9) =9.81×10 =98.1 |
(3)原式=![]() ![]() = ![]() ![]() = ![]() | (4)原式=0.5×(2.5×4)×(8×0.125)×3 =0.5×10×1×3 =15 |
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