99x99 = 9801= 9+8+0+1=18
99x199 = 19701=1+9+7+0+1=18
99x299 = 29601=2+9+6+0+1=18
99x399 = 39501=3+9+5+0+1=18
99x499 = 49401=4+9+4+0+1=18
99x599 = 59301=5+9+3+0+1=18
99x699 = 69201=6+9+2+0+1=18
99x799 = 79101=7+9+1+0+1=18
99x899 = 89001=8+9+0+0+1=18
2006-07-19 22:44:37 · 8 answers · asked by thinktank 1 in Science & Mathematics ➔ Mathematics
alien + maths =curious ideas
2006-07-19 23:25:13 · answer #1 · answered by nice guy 5 · 1⤊ 0⤋
Reply:
9 x 0 + 8 = 8
9 x 9 + 7 = 88
9 x 98 + 6 = 888
9 x 987 + 5 = 8888
9 x 9876 + 4 = 88888
9 x 98765 + 3 = 888888
9 x 987654 + 2 = 8888888
9 x 9876543 + 1 = 88888888
9 x 98765432 + 0 = 888888888
9 x 987654321 + (-1) = 8888888888
^_^
2006-07-20 00:13:46 · answer #2 · answered by kevin! 5 · 0⤊ 0⤋
any number when multiplied by nines will result in a number whose digits sum to 9.
eg
999 x 14372 = 1435563
1+4+3+5+5+6+3 = 27
2+7 = 9
not really curious, just maths.
2006-07-19 22:50:07 · answer #3 · answered by well_clever_i_am 3 · 0⤊ 0⤋
Wonderful.
2006-07-19 22:47:11 · answer #4 · answered by Eternity 6 · 0⤊ 0⤋
r u asking a question or answering it.
ha! ha!
2006-07-19 23:22:12 · answer #5 · answered by pratsi 1 · 0⤊ 0⤋
great mind
2006-07-19 22:53:36 · answer #6 · answered by g 2 · 0⤊ 0⤋
what is curios in this
2006-07-19 23:12:40 · answer #7 · answered by Bava 1 · 0⤊ 0⤋
THATS COOL....
2006-07-19 22:58:01 · answer #8 · answered by THE FANTASY PRINCESS 2 · 0⤊ 0⤋