简算52*11又1/10+2又3/5*778
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简算52*11又1/10+2又3/5*778
简算52*11又1/10+2又3/5*778
简算52*11又1/10+2又3/5*778
52*11又1/10+2又3/5*778
=52*11.1+2.6*778
=26*2*11.1+26*77.8
=26*(22.2+77.8)
=26*100
=2600