脱式计算,100x百分之1.8 0.5x百分之50 5.39+1又七分之二+4.61+七分之五脱式哟..

问题描述:

脱式计算,
100x百分之1.8 0.5x百分之50 5.39+1又七分之二+4.61+七分之五
脱式哟..

100x百分之1.8
=100x1.8%
=1.8
0.5x百分之50
=0.5x50%
=0.25
5.39+1又七分之二+4.61+七分之五
=(5.39+4.61)+(1又七分之二+七分之五)
=10+2
=12