直接写出得数.
4+4.73= ÷9=
×
÷
×
= 4
﹣4
=
375÷1 =
×2÷
×2= 36+0.4= 5×32×2.5=
1÷0.9= 8×(12+0.5)= =
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35+0.4= 8×(12+0.5)= 4×0.8×2.5×12.5= =
=
= .