①12×14.5+12×550%
②35×9.9
③32×2.5×12.5
④12÷[(2.2-40%)×]
8+2.2=
1.5×6=
10×10%=
56%-28%=
1+0.5%=
1-85%=
1÷1%=
1-98%=
3+150%=
3×75%=
①×8××1.25
②5.02-1.37-2.63
③37×
④+7÷(-)
⑤44×(-)
⑥6×+13÷4-19×25%
1- - = × = 0.1÷10%= 0.7+ =
3.6×99+3.6= 0.24×5= ÷ = 0.23=
- = 10-1.05= 32÷24×0= 7.18×99+7.18=
901-698≈ 391÷41≈ ( + )×12= 3.9×4×0.25=