Question

简便计算数学题，恩呢我无语

【ps:五年级的方程不要！】
0.314*82+6.86*8.2

1.18*2.02-1.18*0.02

0.65*9.9+0.065

0.02*35.6*50
【有点多，实在对不起】

Answer 1

你好，很高兴为你解答
1.原式可以如下转换，3.14x8.2+6.86x8.2=8.2x（3.14+6.86）=8.2x10=82
2.原式=1.18x（2.02-0.02）=1.18x2=2.36
3.原式=0.065x99+0.065=0.065x（99+1）=0.065x100=6.5
4.原式=0.02x50x35.6=35.6
希望我的回答对你有帮助
祝你学习愉快！

Answer 2

0.314*82+6.86*8.2
=0.314*82+0.686*82
=82*（0.314+0.686）
=82*1
=82

1.18*2.02-1.18*0.02
=1.18*（2.02-0.02）
=1.18*2
=2.36

0.65*9.9+0.065
=0.65*9.9+0.65*0.1
=0.65*（9.9+0.1）
=0.65*10
=6.5

0.02*35.6*50
=0.02*50*35.6
=1*35.6
=35.6

不懂可追问，有帮助请采纳，谢谢！

Answer 3

你好！！

1,、原式=0.314×82+0.686×82
=（0.314+0.686）×82
=1×82
=82

2、原式=1.18×（2.02-0.02）
=1.18×2
=2.36

3、原式=0.65×9.9+0.65×0.1
=0.65×（9.9+0.1）
=0.65×10
=6.5

4、原式=0.02×50×35.6
=1×35.6
=35.6

望采纳！！

Answer 4

0.314*82+6.86*8.2
=0.314*82+0.686*82
=82*（0.314+0.686）
=82*1
=82

1.18*2.02-1.18*0.02
=1.18*（2.02-0.02）
=1.18*2
=2.36

0.65*9.9+0.065
=0.65*9.9+0.65*0.1
=0.65*（9.9+0.1）
=0.65*10
=6.5

0.02*35.6*50
=0.02*50*35.6
=1*35.6
=35.6

Answer 5

0.314*82+6.86*8.2
=0.314*82+0.686*82
=(0.314+0.686)*82
=1*82
=82

1.18*2.02-1.18*0.02
=1.18*(2.02-0.02)
=1.18*2
=2.36

0.65*9.9+0.065

=0.65*9.9+0.065*1
=0.65*(9.9+0.1)
=0.65*10
=6.5

0.02*35.6*50
=(0.02*50)*35.6
=1*35.6
=35.6