 × = |  ÷ = | 125×1.6= | 12.56÷6.28= | 6× ÷6×= |
 ﹣ = | 3.14×5= | 7.2÷40%= | 75×10%= | ÷3﹣ = |
25÷0.2×（1﹣ ） | 15×（ + ）×17 |  ÷[ ×（ + ）] |
3÷ ﹣÷3 |  ×25%+ ÷0.25 |  × + ÷ ． |
的数是多少？ | 4.3+1.07= | 12﹣7 = |  ×2.7= | 4÷ = | 0.125×32= |
| 80%×30%= | 4 ﹣1 ﹣1.25= |  ÷ = | （2.4+1  ）÷6= |  +÷ + = |
﹣
×
×
+0.375×+37.5% 
×3.2+5.6×0.5+1.2×50% 
﹣
﹣
+
÷（
﹣
×
）
+
）÷
﹣
． 
×7 1﹣1÷9 0.75+
7÷0.01 9π
﹣×0 1﹣0.22 1÷50% 12.6﹣1.7 2.1×
． 
+
）×80% 
与
的和除
的倒数，商是多少？
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