Question

请问32.81×99+32.81×10的简便运算是怎么做的呢？

Answer 1

32.81x99+32.81x10
＝32.81x（99+10）
＝32.81x109
＝3876.29

Answer 2

32.81×99+32.81×10
＝32.81×(99+10)
＝32.81×100+32.81×10-32.81
＝3281+328.1-32.81
＝3576.29

Answer 3

32.81*99+32.81*10
=32.81*(100-1)+32.81*10
=32.81*100-32.81+328.1
=3281-32.81+328.1
=3576.29

Answer 4

这个题目不难哦
32.81×99+32.81×10
=32.81×（99+10）
=32.81×109
=3576.29

Answer 5

32.81х99+32.81х10=32.81х(99+1)+3281