Insert addition and subtraction signs, brackets, and parenthese to get an answer of 100.
2006-09-19 14:15:27 · 5 answers · asked by MJ Ledger 1 in Science & Mathematics ➔ Mathematics
Thank you to everyone who answered! You're all great! I've been working on that for ages!
2006-09-19 14:37:20 · update #1
Only 1 to 9?
(-1-2) + (3*4)*5 +(6*7) -8 +9 = 100
Oops. I didn't read the question correctly. Evangles got it right!!
2006-09-19 14:19:22 · answer #1 · answered by Richard 7 · 69⤊ 0⤋
It would seem there are numerous ways of doing it.
All of the following are correct:
(1)(2+3)(4)(5) - 6 + 7 + 8 - 9 = 100
123 - (45 + 67) + 89 = 100
(1+2+3+4+5+6+7) + [(8)(9)] = 100
I suppose the middle one is the best one because the other two, whilst they don't use actual multiplication signs, their use is implied.
2006-09-19 21:29:19 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1+2+3+4+5+6+7+(8*9) = 100
(note: * is multiplication; therefore we have 1+2+3+4+5+6+7 = 28. 8*9 is 72. Add 28 to 72 and u get 100.
2006-09-19 21:28:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
123 + 45 - 67 + 8 - 9
awesome
2006-09-19 21:25:40 · answer #4 · answered by evangles 2 · 3⤊ 0⤋
123 - (45+67) + 89
2006-09-19 21:28:51 · answer #5 · answered by hayharbr 7 · 0⤊ 0⤋