How I remember the 9 times tables is this. 1×9=9 2×9=18 (18, think 1+8=9) 3×9=27 (27, think 2+7=9) 4×9=36 (36, think 3+6=9) 5×9=45 (45, think 4+5=9) and so on
So for 6×9, subtract 1 from 6, which gives you the first digit 5. Then, think 5 + what gives me 9? 5+4, right? So your answer is 54.
