20÷12=
1.6666666666
1.666 × 2 =
3.333
6.666
13.333
26.666
53.333
106.666
213.333
426.666
853.333
1706.666
3413.333
6826.666
13653.333
27306.666
20÷12=
1.6666666666
1.666 × 2 =
3.333
6.666
13.333
26.666
53.333
106.666
213.333
426.666
853.333
1706.666
3413.333
6826.666
13653.333
27306.666