Question

3.33×6.66 2.22÷100简便算法？

Answer 1

3.33×6.66
这种题的简便方法就是化整为零，分别计算，然后进行相加求和。把3.33分解后得出3.33=3+0.3+0.03。把6.66分解后得出6.66=6+0.6+0.06
3.33×6.66
=(3+0.3+0.03)×(6+0.6+0.06)
=18+1.8+0.18+1.8+0.18+0.018+0.18+0.018+0.0018
=18+2×1.8+3×0.18+2×0.018+0.0018
=18+3.6+0.54+0.036+0.0018
=18+4.14+0.036+0.0018
=18+4.176+0.0018
=18+4.1778
=22.1778
简单方便的计算方法。这样就很容易计算这样的题。希望能给你启迪。帮助你非常高兴。

Answer 2

3.33×6.66+2.22÷100
＝3.33×6.66+2.22×0.01
＝9.99×2.22+2.22×0.01
＝2.22×（9.99+0.01）
＝2.22×10
＝22.2

Answer 3

3.33*（2*3.33）=2*11.0889=22.1778.。
2.22/100=2.22/10/（10）=0.22/10=0.022。