6.75÷2.5x99+2.7用简便方法怎么计算?
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6.75÷2.5x99+2.7
=(6.75x4)÷(2.5x4)x99+2.7
=27÷10x99+2.7
=2.7x99+2.7
=2.7x(99+1)
=2.7x100
=270
运用了商不变的性质和乘法分配率
=(6.75x4)÷(2.5x4)x99+2.7
=27÷10x99+2.7
=2.7x99+2.7
=2.7x(99+1)
=2.7x100
=270
运用了商不变的性质和乘法分配率
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先使用6.7÷2.5得到0.27,然后使用0.27×100-0.27得到26.73,最后使用26.73-2.7得到24.03
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6.75除以2.5*99+2.7
=6.75*1/2.5*99+2.7
=6.75*10/25*99+2.7
=6.75*2/5*99+2.7
=1.35*2*99+2.7
=2.7*99+2.7
=2.7*(99+1)
=2.7*100
=270
=6.75*1/2.5*99+2.7
=6.75*10/25*99+2.7
=6.75*2/5*99+2.7
=1.35*2*99+2.7
=2.7*99+2.7
=2.7*(99+1)
=2.7*100
=270
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6.75÷2.5*99+2.7
=6.75*1/2.5*99+2.7
=6.75*10/25*99+2.7
=6.75*2/5*99+2.7
=13.5/5*99+2.7
=2.7*99+2.7
=2.7*(99+1)
=2.7*100
=270
=6.75*1/2.5*99+2.7
=6.75*10/25*99+2.7
=6.75*2/5*99+2.7
=13.5/5*99+2.7
=2.7*99+2.7
=2.7*(99+1)
=2.7*100
=270
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