+= 
﹣
= 7.2÷0.3= 
﹣1=
+0.2= 0.54÷9= 
﹣
= 
﹣
=
﹣
= 
+
= 1÷0.25= 
+
=
0.67+0.3= 0.38×2= 8.1÷0.09= 2﹣
= 12×0.5= 2.5×0.6=
相关试题
+= ﹣= 7.2÷0.3= ﹣1=+0.2= 0.54÷9= ﹣= ﹣=﹣= += 1÷0.25= +=
0.67+0.3= 0.38×2= 8.1÷0.09= 2﹣= 12×0.5= 2.5×0.6=
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