7.8÷0.2=
72×2-3.5=
12×(23-12)=
13-15+13=
4×(1-10%)=
58-62.5%=
13+50%=
47÷12+37×2=
6÷20%= 0.125×8= 12×30%= 65÷0.05=
13+14= 2-50%= 3.1+35= 17+67=
65%×65+35×65%= 7×34÷7×34 =
2.5×(1.9+1.9+1.9+1.9) 160×3.5×0.125
24×15+72÷5+14×20% 18×4.3+36×2.05-910×32