1+19%=
3÷=
×50%=
1.4÷10%=
-+=
×=
1÷25=
3.4﹣1.52=
1+-÷1=
10×10%=
56%-28%=
1+0.5%=
1-85%=
1÷1%=
1-98%=
3+150%=
3×75%=
2.05×4= 0.14÷0.2 = 0.5²=
①4-+
②
③3.06÷0.17×0=
④7÷4÷0.25=
⑤0.43=
⑥1÷100%=
⑦0.875-=
⑧49×÷49×
0.25×40= 1-80%= 0.3×20%= 0.75÷ = 52-12=
3- = - = 0÷ = 0.21÷0.7= 1- + =