18.4÷0.5＋1.84简便计算

18.4÷0.5＋1.84简便计算

18.4÷0.5＋1.84
=18.4*2+18.4*1/10
=18.4*(2+1/10)
=18.4*21/10
=38.64

=1.84*3=5.52

18.4÷0.5＋1.84
=18.4×2＋1.84
=36.8＋1.84
=38.64

18.4÷0.5=18.4×1/2 所以这个计算题可以转换成18.4×1/2=18.4×1 所以就等于 18.4×（1/2+1）=27.75