0.125x0.3+0.125x0.7-0.125怎么简便法
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您好，0.125x0.3+0.125x0.7-0.125=0.125*(0.3+0.7-1)=0.125*0=0
咨询记录 · 回答于2022-09-18
0.125x0.3+0.125x0.7-0.125怎么简便法
您好，0.125x0.3+0.125x0.7-0.125=0.125*(0.3+0.7-1)=0.125*0=0
您好，0.125x0.3+0.125x0.7-0.125=0.125*(0.3+0.7-1)=0.125*(1-1)=0.125*0=0
0.6x0.1-6x0.01
0.6x0.1-6x0.01=6*0.01-6*0.01=0.06*(0.01-0.01)=0.6*0=0
或0.6x0.1-6x0.01=0.6*.0.1-0.6*0.1=0.6*(0.1-0.1)=0.6*0=0
不好意思，订正一下0.6x0.1-6x0.01=6*0.01-6*0.01=0.06*(0.01-0.01)=0.06*0=0
127+6.58+3.3+3.42-0.2x18
正确答案是:1、0.6x0.1-6x0.01=6*0.01-6*0.01=0.06*(0.01-0.01)=0.06*0=0或0.6x0.1-6x0.01=0.6*.0.1-0.6*0.1=0.6*(0.1-0.1)=0.6*0=0
127+6.58+3.3+3.42-0.2x18=127+(6.58+3.42)+3.3-3.6=127+10+3.3-3.6=(127+10)+(3.3-3.6)=137-0.6=136.4
不好意思，订正一下127+6.58+3.3+3.42-0.2x18=127+(6.58+3.42)+3.3-3.6=127+10+3.3-3.6=(127+10)+(3.3-3.6)=137-0.3=136.7
正确答案是:127+6.58+3.3+3.42-0.2x18=127+(6.58+3.42)+3.3-3.6=127+10+3.3-3.6=(127+10)+(3.3-3.6)=137-0.3=136.7
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