2006-12-02 06:12:54 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
9 times 9 is basically saying "9+9+9+9+9+9+9+9+9=81". Thats what 9x9 is.
2006-12-02 06:15:41 · answer #1 · answered by Anonymous · 0⤊ 0⤋
9+9+9+9+9+9+9+9+9 equals 81
2006-12-02 14:22:19 · answer #2 · answered by sTaCy 2 · 0⤊ 0⤋
If you add 9 together 9 times it makes 81. 9 is the only number I can think of that the multiples are exact mirrors of each other. For example, 9 times 2 is 18. It's a mirror image of 81.
2006-12-02 14:22:43 · answer #3 · answered by Mariposa 7 · 0⤊ 0⤋
do all your Nine 9*1=9 9+9+9+9+9+9+9+9+9=81
2006-12-02 15:03:28 · answer #4 · answered by ? 3 · 0⤊ 0⤋
What???
It's just the way math works.
9x9 is the same as 9+9+9+9+9+9+9+9+9 So if you just keep adding 9, 9 times, you get 81.
But you knew that didnt you ;-)
2006-12-02 14:16:34 · answer #5 · answered by itsallgood 1 · 2⤊ 0⤋
Because it's 10 x 9 (which is 90 - and before you ask, you just stick a zero behind the 9!) Take away 9 and that makes 81. So now, you should be reeeeeeally confuddled!
2006-12-02 14:23:39 · answer #6 · answered by Val G 5 · 0⤊ 0⤋
nine multiplied by nine is 81.
9+9+9+9+9+9+9+9+9=81 9*9 is the same as that.
2006-12-02 14:17:13 · answer #7 · answered by Professor Sheed 6 · 0⤊ 1⤋
because 9*9=81, ie 9+9+9+9+9+9+9+9+9
2006-12-02 14:15:46 · answer #8 · answered by suby 3 · 0⤊ 1⤋
what is this...
add 9, 9 times... or add 1, 81 times and divide by 9, you will get 9. it is a math rule.
ask questions logically..
2006-12-02 14:37:05 · answer #9 · answered by candy 2 · 0⤊ 0⤋
If you have nine groups of nine and add them all up, it equals a total of 81. That's what multiplication is: adding up GROUPS of numbers which makes adding faster.
2006-12-02 14:17:03 · answer #10 · answered by Anonymous · 0⤊ 0⤋