4.5x+3.8x=16.6
5÷-÷5 2.94×+4.06÷
[15×(50%+]÷ 9.16×1.53﹣0.053×91.6
= 0.3÷0.7= 32÷1%=
1-1%= 0.33= 756- 198=
+0.625= ×= 24÷40%= 7.2÷0.9÷0.8=
①x∶12=×2.8
②=
③∶=x∶15
列式: