5.4×0.68+3.4×2×0.46简便计算

问题描述:

5.4×0.68+3.4×2×0.46简便计算

5.4×0.68+3.4×2×0.46
= 5.4×0.68+6.8×0.46
= 0.54×6.8+6.8×0.46
= 6.8×(0.54+0.46)
= 6.8