4.6乘以(30除以7.5)怎样简便计算?

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4.6乘以(30除以7.5)怎样简便计算?4.6乘以(30除以7.5)怎样简便计算?4.6乘以(30除以7.5)怎样简便计算?解4.6x(30÷7.5)=4.6x4=18.47.5=15/2,4.6×

4.6乘以(30除以7.5)怎样简便计算?
4.6乘以(30除以7.5)怎样简便计算?

4.6乘以(30除以7.5)怎样简便计算?

4.6x(30÷7.5)
=4.6x4
=18.4

7.5=15/2,
4.6×30/(7.5)
=4.6×30/(15/2)
=4.6×30/15×2
=4.6×2×2=36.8