Nine of them
10 times
9*9=81 81-9=72 72/9=88
There are: 495/9 = 55
6 of them with a remainder of 4
Well, isn't that a happy little question! If we're looking at how many times 9 fits into 90, we simply divide 90 by 9. And when we do that, we find that 9 goes into 90 a total of 10 times. Just like painting a beautiful landscape, sometimes all it takes is a little division to see the bigger picture!
70 x 9 = 630
Well, honey, if you want to write 0.81 repeating as a fraction in simplest form, you just gotta remember your high school math. It's 81 over 99, because that repeating decimal is 81 over 99. And if you want to simplify it, just divide the top and bottom by 9 to get 9 over 11. Voilà!
3 times with a remainder of 5
33 divided by 9 equals 3 with a remainder of 6
as in the multiples? 9 18 27 36 45 54 63 72 81 90 99 ...
1 goes into 81 81 times.