9 x 1= 9 9 x 2= 18 9 x 3=27 9 x 4= 36 9 x 5= 45 9 x 6= 54 9 x 7= 63 9 x 8= 72 9 x 9= 81 9 x 10= 90 9 x 11= 99 9 x 12= 108
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9 multipyed (times by) by 9 = 81 LEARN YOUR TABLES!!!!
The number 81 appears in several times tables. Specifically, it is found in the 9 times table (9 x 9 = 81) and the 3 times table (3 x 27 = 81). Additionally, it can be expressed in the 1 times table (1 x 81 = 81).
1, 3, 5, 9, 15 & 45.
Because certain times tables always end in particular numbers. The numbers in the 10 times tables always end with a 0 e.g 10, 20, 30... The number in the 5 times tables always end with a 0 or 5 e.g. 5, 10, 15... The 2, 4, 6, 8 times tables will always end in even numbers. The 1 times table is obvious. The 9 times table always has digits that sum to 9 e.g. 9, 18, 27... The hardest times table is usually considered to be the 7 times table to learn as their is no obvious pattern to the numbers.
the three times tables!!! 3x1=3 3x2=6 3x3=9