54.9×0.38 6.8×25 4.05+37.38 6.1×3
54.9×0.38 6.8×25 4.05+37.38 6.1×3.6+3.6×3.9
1,54.9×0.38简算 2,9.8 ×25简算?3,4.05+37.85简算?
54.9×0.38 4.05×37.85 1.25×0.7×0.8
54.9×0.38= 4.05+37.85= 1.25×0.7×0.8= 9.8×25= 2.96
54.9*0.38和4.05+37.85用简便方法
54.9*0.38= 4.05+37.85= 2.96*40= 简便方法计算,
54.9×0.38简便计算
54.9×0.38简算
54.9×0.38简便谢谢各位
54.9×0.38的简便运算!
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