4.9*0.7+18.32用【简便计算】
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4.9*0.7+18.32用【简便计算】4.9*0.7+18.32用【简便计算】4.9*0.7+18.32用【简便计算】原式：4.9×0.7+18.32=49×0.07+18.32=（50-1）×0.
4.9*0.7+18.32用【简便计算】
4.9*0.7+18.32用【简便计算】
4.9*0.7+18.32用【简便计算】
原式：
4.9×0.7+18.32
=49×0.07+18.32
=（50-1）×0.07+18.32
=3.5-0.07+18.32
=21.82-0.07
=21.75
或
（5-0.1）×0.7+18.32
=3.5-0.07+18.32
=3.5+18.32-0.07
=21.82-0.07
=21.75
=4.9*0.7+26.1*0.7+0.05=0.7*(4.9*26.1)+0.05=0.7*31+0.05=21.7+0.05=21.75
=4.9*0.7+26*0.7+0.12=0.7*(4.9+26)+0.12=0.7*30.9+0.12=21.63+0.12=21.75
=(5-0.1)*0.7+18+0.32=3.5+18+0.32-0.07=21.5+0.25=21.75
=(5-0.1)*7+18.32
=35-0.7+18.32
=52.82
4.9*0.7+18.32=(5-0.1)0.7+18.32=3,5-0.07+18.32=2,43+18.32=21.75