递等式计算能巧算的要巧算 0.8*(4-3.75)/0.1 4.8*1.25*0.25 9.5*4.8-4.8*5 14.75/8/1.25

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递等式计算能巧算的要巧算0.8*(4-3.75)/0.14.8*1.25*0.259.5*4.8-4.8*514.75/8/1.25递等式计算能巧算的要巧算0.8*(4-3.75)/0.14.8*1.

递等式计算能巧算的要巧算 0.8*(4-3.75)/0.1 4.8*1.25*0.25 9.5*4.8-4.8*5 14.75/8/1.25
递等式计算能巧算的要巧算 0.8*(4-3.75)/0.1 4.8*1.25*0.25 9.5*4.8-4.8*5 14.75/8/1.25

递等式计算能巧算的要巧算 0.8*(4-3.75)/0.1 4.8*1.25*0.25 9.5*4.8-4.8*5 14.75/8/1.25
0.8*(4-3.75)/0.1
=8*0.25
=2
4.8*1.25*0.25
=6*(0.8*1.25)*0.25
=1*1.5
=1.5
9.5*4.8-4.8*5
=4.8*(9.5-5)
=4.8*4.5
=(5-0.2)*4.5
=5*4.5-0.2*4.5
=22.5-0.9
=21.6
14.75/8/1.25
=14.75/(8*1.25)
=14.75/10
=1.475