Question

3.01x6.5的简便计算？

Answer 1

3.01×6.5=19.565

Answer 2

利用乘法分配律简算
3.01×6.5
＝（3+0.01）×6.5
＝3×6.5＋0.01×6.5
＝19.5＋0.065
＝19.565

Answer 3

3.01*6.5
=3.01*（6+0.5）
=3.01*6+3.01*0.5
=18.06+1.505
=19.565

Answer 4

3.01×6.5
＝(3+0.1)×6.5
＝3×6.5+0.1×6.5
＝19.5+0.65
＝20.15

Answer 5

把3.01分成3+0.01，再用3乘以6.5等于19.5，再用0.01乘以6.5等于0.065。再用19.5+0.065等于19.565。