求详细解答:脱式计算。(能简算的
脱式计算。(能简算的要简算)(1)16.8-6.8×0.25(2)0.25×6.5×40(3)0.25×32×1.25(4)7.3×0.64+9.36(5)10.1×0....
脱式计算。(能简算的要简算) (1)16.8-6.8×0.25 (2)0.25×6.5×40 (3)0.25×32×1.25 (4)7.3×0.64+9.36 (5)10.1×0.99 (6)4.66×0.28+4.66×0.82-4.66
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(1)原式=16.8-6.8×0.25 =16.8-1.7 =15.1 | (2)原式=0.25×40×6.5 =10×6.5 =65 |
(3)原式=0.25×4×(8×1.25) =1×10 =10 | (4)原式= 4.672+9.36 =14.032 |
(5)原式=(10+0.1)×0.99 =9.9+0.099 =9.999 | (6)原式= 4.66×(0.28+0.82-1) = 4.66×0.1 =0.466 |
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