tilda13
contestada

1
Circle or write down the number in each list which is not a multiple of the first number listed.
a 3, 6, 9, 12, 14, 18, 21
b 11, 22, 33, 45, 55, 66
C 21.43.63, 84, 105
d 13, 26, 40.52, 65.