2007-12-21 15:38:53 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
I don't know because it doesn't have an answer so you can't find out what the ? number is
2007-12-21 15:45:59 · answer #1 · answered by luv2read_al 2 · 1⤊ 1⤋
1+(-1) + (-3) + ? + (-91)
= 1 - 1 - 3 + ? - 91
= 0 - 3 + ? - 91
= -3 + ? - 91
= -94 + ?
2007-12-22 00:31:12 · answer #2 · answered by An ESL Learner 7 · 0⤊ 0⤋
1+(-1) + (-3) + ? + (-91)
1-1-3-91
0-3-91
-94
why there is two question mark
sum means add all numbers togather
if diffrent sign then subtract
if not than add them
2007-12-21 15:51:20 · answer #3 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 0⤋
How can you find the sum if one of the numbers is unknown. Maybe I need to drink more to understand the question.
2007-12-21 15:52:42 · answer #4 · answered by Average Joe 5 · 0⤊ 0⤋
it is -94
2007-12-21 15:46:59 · answer #5 · answered by LIVEinLOVE 1 · 0⤊ 0⤋
-94 + ?
2007-12-21 15:56:56 · answer #6 · answered by Anonymous · 0⤊ 0⤋
-3+(-90)?
2007-12-21 15:47:54 · answer #7 · answered by Chris D 2 · 0⤊ 0⤋