有理数的乘除法1.|0|-(+10)+|-4|-(-15)-|16.2| 2.5又3/7+6又4/5-(+5又3/7)+(-4又1/5)3.(-3/8)×16+0.5×(-5)×(-4)-(-24)×(-5/24) 4.2-2÷1/3×3 5.-5/7÷[3又1/2×(-5/7)-(-5/7)×2又1/2+5/7×1/2]

问题描述:

有理数的乘除法1.|0|-(+10)+|-4|-(-15)-|16.2| 2.5又3/7+6又4/5-(+5又3/7)+(-4又1/5)
3.(-3/8)×16+0.5×(-5)×(-4)-(-24)×(-5/24)
4.2-2÷1/3×3 5.-5/7÷[3又1/2×(-5/7)-(-5/7)×2又1/2+5/7×1/2]

|0|-(+10)+|-4|-(-15)-|16.2|=-10+4+15-16.2=-7.25又3/7+6又4/5-(+5又3/7)+(-4又1/5)=(5+6-5-4)+(3/7+4/5-3/7-1/5)=2+3/5=2.6(-3/8)×16+0.5×(-5)×(-4)-(-24)×(-5/24)=-6+10-5=-12-2÷1/3×3=2-2×3...