0.6×15.8-6×0.58 12.5×[(23.5+8.5)÷4]
8.1÷0.9= 0÷32= 6.7÷10=
1.6÷8= 0.54÷0.06= 0.5÷0.5=
3.08×2.5= △19.8÷5.5=
5x+8x=
10m-m=
x-0.5x=
5n+7n=
2y-0.7y=
y×6×y=
(a+b)×8=
8-a×5=
n+1.8n=
7a+6a-10=
13.7b+3b=
11+3.6m-2m=
7.5×10.1
(29.4-16.8÷2.1)×0.25
5.6×1.25×0.7
9.2×5.5+0.45×92
①
②
③
④
82.65÷5.7×5.4
6.46×3.5+3.5×4.54-3.5