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简便运算:161.8*6.18+2618*0.382=?谢谢,急等!
题目详情
简便运算:161.8*6.18+2618*0.382=?
谢谢,急等!
谢谢,急等!
▼优质解答
答案和解析
161.8×6.18+2618×0.382
=618*1.618+(2000+618)*0.382
=618*1.618+2000*0.382+618*0.382
=618*(1.618+0.382)+2*382
=618*2+2*382
=2*(618+382)
=2*1000
=2000
=618*1.618+(2000+618)*0.382
=618*1.618+2000*0.382+618*0.382
=618*(1.618+0.382)+2*382
=618*2+2*382
=2*(618+382)
=2*1000
=2000
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