The "multiplication facts" may be numbered differently in different textbooks, so it is really hard to guess what multiplication facts you are talking about. Better use the standard names, for example, "commutative property", "associative property", etc.
For a multiplication such as 3 x 7, you either memorize the tables, your you do the repeated addition (3 x 7 = 7 + 7 + 7, that is, 7 appears 3 times as an addend.)
3 is 1 third of nine. so for 1x9 just do 1x3 and times the answer by 3. 1x3=3 and 3x3=9 so 1x9=9. 2x3=6 and 6x3=18 so 9x2=18 and so on and so on.
Some multiplication facts for 81 are 9 x 9 3 x 27 1 x 81
19 x 1
1*114 = 114 is one such fact.
There are infinitely many facts. Some of these are: 1 * 10 100 * 0.2 50 * 0.4
1 x 7 plus 2 x 7 is the same as 3 x 7
3 is 1 third of nine. so for 1x9 just do 1x3 and times the answer by 3. 1x3=3 and 3x3=9 so 1x9=9. 2x3=6 and 6x3=18 so 9x2=18 and so on and so on.
Some multiplication facts for 81 are 9 x 9 3 x 27 1 x 81
1 x 21 3 x 7 7 x 3 21 x 1
19 x 1
multiplication is just times or x like 1x1=1
1 times 4
1 times 88 equals 88.
1*114 = 114 is one such fact.
There are infinitely many facts. Some of these are: 1 * 10 100 * 0.2 50 * 0.4
1 x 77, 7 x 11.
1 x 25, 5 x 5.