3÷0.3= 5×0.24= 0.38÷3.8= 1﹣0.09=
13.5×0.1= 0.99+0.1= 0.96÷8= 0.35×4=
0.57÷0.19= 0.125×7×8= 1÷2.5﹣1÷2.5= 0.8+1.3﹣0.8+1.3=
3÷0.3= 5×0.24= 0.38÷3.8= 1﹣0.09=
13.5×0.1= 0.99+0.1= 0.96÷8= 0.35×4=
0.57÷0.19= 0.125×7×8= 1÷2.5﹣1÷2.5= 0.8+1.3﹣0.8+1.3=
+
= 
+
= 
﹣
= 
+
﹣
=
= 
+
= 
﹣
= 1﹣
﹣
=
+
= 
﹣
= 
+
= 1﹣
=
= 
﹣
= 
+
= 
=
．
，再加上
．
+
=
﹣
=
﹣
=
+
=
粤公网安备 44130202000953号