
选择合适的方法计算
1个回答
2017-03-25
展开全部
5.76-(15-14.24)
=5.76+14.24-15
=20-15=5
8.88*5*12.5*2
=1.11*8*12.5*5*2
=1.11*100*10=1110
90.45-32.44-6.89*4
=90.45-4*(8.11+6.89)
=90.45-4*15=30.45
=5.76+14.24-15
=20-15=5
8.88*5*12.5*2
=1.11*8*12.5*5*2
=1.11*100*10=1110
90.45-32.44-6.89*4
=90.45-4*(8.11+6.89)
=90.45-4*15=30.45
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