12*222.2-666.6+0.25*0.25*80简算
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12*222.2-666.6+0.25*0.25*80简算12*222.2-666.6+0.25*0.25*80简算12*222.2-666.6+0.25*0.25*80简算12*222.2-666.
12*222.2-666.6+0.25*0.25*80简算
12*222.2-666.6+0.25*0.25*80简算
12*222.2-666.6+0.25*0.25*80简算
12*222.2-666.6+0.25*0.25*80
=222.2*（12-3）+80/（4*4）
=222.2*9+5
=2222-222.2+5
=2 004.8
12*222.2-666.6+0.25*0.25*80
=4*666.6-666.6+0.25*4*0.25*4*5
=（4-1）*666.6+5
=3*666.6+5
=1999.8+5
=2004.8
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