สูตรคูณแม่ 5
5 x 0 =0
5 x 1 =5
5 x 2 =10
5 x 3 =15
5 x 4 =20
5 x 5 =25
5 x 6 =30
5 x 7 =35
5 x 8 =40
5 x 9 =45
5 x 10 =50
5 x 11 =55
5 x 12 =60