0.9×=
×35=
×0=
=
3.5×=
8.9÷0.89=
10-0.98=
25×0.4=
①
②8角:6分
③2.5:1.5
④m:0.15m
⑴x-x=8 ⑵x+25%=12 ⑶x+=
x-x=
x+60%x=3.84
x ÷=
-= ×= ×18= +=
3÷= 21×= ÷= ÷=
÷8= 1÷×6= -÷= ÷×0=
×3= 1÷ = 10× = 14- - =
= ÷3= = =
3÷= -= 9.9%÷0.1= ×4÷4×=
2.4×= += 1-25%= (-)×16=
×12= -= 100×50%= 0.32= 5﹣0.99=