1800÷12.5÷2.5÷3.2简便计算

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1800÷12.5÷2.5÷3.2简便计算
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1800÷12.5÷2.5÷3.2简便计算
1800÷12.5÷2.5÷3.2简便计算

1800÷12.5÷2.5÷3.2简便计算
1800÷12.5÷2.5÷3.2
=1800÷(12.5*2.5*3.2)
=1800÷(12.5*8*2.5*0.4)
=1800÷(100*1)
=18

1800÷12.5÷2.5÷3.2
=1800÷(12.5x2.5x3.2)
=1800÷(12.5x2.5x8x0.4)
=1800÷(12.5x8x2.5x0.4)
=1800÷(100x1)
=1800÷100
=18

=1800/(12.5*2.5*3.2)
=1800/(12.5*2.5*4*0.8)
=1800/[(12.5*0.8)*(4*2.5)]
=1800/(10*10)
=18

3.2分成4×0.8,4和2.5、0.8和12.5相乘
1800÷(4×2.5)÷(0.8×12.5)=18