直接写得数4.3+3.57= 6.3÷0.9= 2.4×0.5= 1÷0.2÷0.5= 5- 5 7 - 2 7 = 1
直接写得数4.3+3.57=6.3÷0.9=2.4×0.5=1÷0.2÷0.5=5-57-27=10÷10%=1÷0.2÷0.5=7×17÷7×17=...
直接写得数4.3+3.57= 6.3÷0.9= 2.4×0.5= 1÷0.2÷0.5= 5- 5 7 - 2 7 = 10÷10%= 1÷0.2÷0.5= 7× 1 7 ÷7× 1 7 =
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