9+9+9+9 etc if you want to learn your 11's it's 11 22 33 44 55 66 77 88 99
if you wonder now why 11+11-22 and 22+11=33 etc is because it's in 11 times table
gtg not gonna use my real name so im putting
Milsymoo
In times tables, 3 x 3 = 9, and 1 x 9 = 9.
No, it is not 9 x 5 = 45 9 x 6 = 54
1 x 81, 3 x 27, 9 x 9, 27 x 3, 81 x 1.
It could be 1 x 45 3 x 15 or 5 x 9 .
1 x 207, 3 x 69, 9 x 23 = 207
Could be: 12 x 9 = 108, or 9 x 12 = 108 (there are other tables than can be used, too!).
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
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).
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
0 x 9=0 1 x 9=9 2 x 9=18 3 x 9=27 4 x 9=36 5 x 9=45 6 x 9=54 7 x 9=63 8 x 9=72 9 x 9=81 10 x 9=90 The trick is in the answer to every sum the ten gets bigger and the unit gets smaller. e.g: 8 x 9=72 9 x 9=81
9 x 111 = 999 To simplify the sum, think of it as making 99. 9 x 11 = 99 Then multiply the answer (99) and 11 by ten. That is your answer
9 tables and 12 stools