54.9×0.38 6.8×25 4.05+37.38 6.1×354.9×0.38 6.8×25 4.05+37.386.1×3.6+3.6×3.9 1.25×0.7×0.82.96×40

54.9×0.38 6.8×25 4.05+37.38 6.1×354.9×0.38 6.8×25 4.05+37.386.1×3.6+3.6×3.9 1.25×0.7×0.82.96×40 54.9×0.38简算 54.9*0.38能简算吗? 54.9×0.38简便计算 54.9×0.38 6.8×25 4.05+37.38 6.1×3.6+3.6×3.954.9×0.386.8×25 4.05+37.386.1×3.6+3.6×3.9 1.25×0.7×0.82.96×40这六题的便简计算,跪求学霸快我现在没有时间了. 54.9*0.38的简便运算 54.9乘以0.38等于多少? 54.9×0.38的简便运算! 54.9*0.38怎样列竖式计算 54.9*0.38的简便算法 54.9×0.38简便谢谢各位 1,54.9×0.38简算 2,9.8 ×25简算?3,4.05+37.85简算? 简算：3.4×7×1.5 0.8×0.25×0.5×12.5 正常算：54.9×0.简算：3.4×7×1.5 0.8×0.25×0.5×12.5 正常算：54.9×0.38 9.8×25 4.05+37.85 54.9×0.38用简便方法计算 54.9×0.38 求这题的简便运算,谢谢! 54.9×0.38怎么简便计算,帮我 54.9乘0.38怎么简便计算啊 54.9乘0.38的简便计算