①36×()
②1.3×37.5%+2.7×
③ [()]
④13÷()×
1.6×50= 6.3÷0.1= 1﹣= -×=
6.4-3.32=
578+298=
48×25%=
-=
1÷=
4÷=
12×2.5=
+=
4.35÷0.5=
302×8.89=
799×20=
1.25×32×0.25
× +15×0.375+0.4×37.5%
÷ ×(1﹣ )
1÷= = 1.1+0.11= 2.4×50%= 0.24÷0.8=
= 8×= 10﹣0.99= 0.22= 4×25%÷4×25%=