296﹣98=
1000×0.9=
303÷0.1=
20÷20%=
+3÷=
①(36.18÷1.8-14.5)× 20
②7.625-()-2.75
③12.5×3.2×2.5
④3÷7+48×
⑤(36+)÷(1÷)
⑥
1.25×32×0.25
× +15×0.375+0.4×37.5%
÷ ×(1﹣ )