
脱式计算。(能简算的要简算) (1)(0.2+6.37÷0.7)×0.5 (2)4.7×4.7+4.3×4.
脱式计算。(能简算的要简算)(1)(0.2+6.37÷0.7)×0.5(2)4.7×4.7+4.3×4.7(3)0.125×500×0.2×8(4)98.5-14.82÷...
脱式计算。(能简算的要简算) (1)(0.2+6.37÷0.7)×0.5 (2)4.7×4.7+4.3×4.7 (3)0.125×500×0.2×8 (4)98.5-14.82÷7.6×3.1
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(1)原式=(0.2+9.1)×0.5 =9.3×0.5 =46.5 | (2)原式=4.7×(4.7+4.3+1) =4.7×10 =47 |
(3)原式=0.125×100×8 =12.5×8 =100 | (4)原式=98.5-1.95×3.1 =98.5-6.045 =92.455 |
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