1.3×3=
0.5×0.9=
0.04×5=
4.8÷0.1=
0.42÷7=
1.2÷2=
70÷ 5.6= 4.2÷12=
24.5÷2.5= 15.12÷4.5=
176.4÷0.63= 9.744÷4.8=
x+3.4x=30.8
(x+1.2)×6=10.8
(x-7)÷5=57.6
问题:
算式: