如果需要简算的话,是可以的：
12.8+2.04×9.5
=12.8+(2+0.04)×(10-0.5)
=12.8+2×10-2×0.5+0.04×10-0.04×0.5
=12.8+20-1+0.4-0.02
=32.18
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