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4.36 12.5 8简便运算

=4.36x(12.5x8) =4.36X100=436

4.36*12.5*8 =436/100*125/100*8 =109/25*5/4*8 =109/5 =21.5

【答案】:23.6-(7.8-2.2)

运用了乘法的交换律.先计算12.5*8等于100.在计算4.36*100=436.

1. 先算12.5*8=100*4.36=4362. 15.2/0.25/4=15.2*(0.25*4)=12.5

4.36*(1.25*8)=4.36*10=43.6

答:等于446.464

3.29÷12.5÷8=3.29÷(12.5*8)=3.29÷100=0.0329

4*12.5 =6743.5+0.2÷8*12.5 =(40÷8+3.2÷8)*12.5 =5*12

12.5*8/12.5*8 =100/100=0

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