Other Tips to Remember 3 x 6 = 18

Skip Counting

Skip counting is counting while skipping one or more numbers.  To skip count by 3's, skip 2 numbers while counting.  (3....6....9....12....)  Many refer to this a "counting by 3's
3 x 6 is skip counting six times or 3... 6... 9... 12... 18 and you are at the answer.

Rhymes

The trees are sick and aching, 3 times 6 is 18.