Some multiplication facts for 81 are
9 x 9
3 x 27
1 x 81
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The pattern is: 9, 18, 27, 36, 45, 54, 63, 72, 81, and 108.
multiplication facts are simply that times table in this case 5
9 x 9
3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60
The answer depends on different from WHAT!