2.4-(-3/5)+(3.1)+4/5=

问题描述:

2.4-(-3/5)+(3.1)+4/5=
(-6/13)+(-7/13)-(-2)=
3/4-(-11/6)+(-7/3)=
11+(-22)-3×(-11)=
(-0.1)÷1/2×(-100)=
(-3/4)×(-2/3-1/3)*10=
(-2)^3-3^2=
22÷[(-2)^3-(-4)]=
(3/4-7/8)÷(-7/8)=
(-60)×(3/4+5/6)=
1-2+3-4+5-6+……+99+100=

2.4-(-3/5)+(3.1)+4/5=6.9 (-6/13)+(-7/13)-(-2)=13/4-(-11/6)+(-7/3)=1/4(2.5)11+(-22)-3×(-11)=22(-0.1)÷1/2×(-100)=20(-3/4)×(-2/3-1/3)*10=15/2(7.5)(-2)^3-3^2=?22÷[(-2...“^”表示次方,如x的3次方 想x^3,继续请教!!急啊