简算(纯属送分)6.5/1.25/84.9*4+5.1/0.251.25*0.25*0.05*64

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简算(纯属送分)6.5/1.25/84.9*4+5.1/0.251.25*0.25*0.05*64
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简算(纯属送分)6.5/1.25/84.9*4+5.1/0.251.25*0.25*0.05*64
简算(纯属送分)
6.5/1.25/8
4.9*4+5.1/0.25
1.25*0.25*0.05*64

简算(纯属送分)6.5/1.25/84.9*4+5.1/0.251.25*0.25*0.05*64
第一题:
6.5÷1.25÷8
=6.5÷(1.25×8)
=6.5÷10
=0.65
第二题:
4.9×4+5.1÷0.25
=4.9×4+5.1×4
=4×(4.9+5.1)
=4×10
=40
第三题:
1.25×0.25×0.05×64
=(1.25×8)×(0.25×4)×(0.05×2)
=10×1×0.1
=1

1. =6.5/(1.25*8)=6.5/10=0.65
2. =4.9*4+5.1*4=(4.9+5.1)*4=40
3. =(1.25*8)*(0.25*4)*(0.05*2)=10*1*0.1=1

1.0.65
2.40
3.1

0.65
40
1

同上

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