Sunday

September 14, 2014

September 14, 2014

Posted by **Chalese** on Wednesday, September 6, 2006 at 7:55pm.

EX. 1-6+3-7+9-4+5+7=17

It must equal 17

Here's a hint. Add all the numbers up first, then see what number needs to be subtracted in order to get 17. Then find a combination of numbers to add to that number and put a minus sign in front of them.

No, on second thought I don't think that method will work. I didn't test it first, but now I see the numbers will be subtracted twice. I'm not sure if there's a system for this problem or not.

Ok Chalese. I wrote the problem on a spreadsheet and checked all 256 combinations. There are 8 numbers, so that makes 2^8 = 256 combinations.

Guess what? No odd numbers are possible at all with these numbers.

These are the only possible values:

-42

**Answer this Question**

**Related Questions**

maths 2 - The original question I had was write arcsin4 in the form a+ib. I ...

Introductory algebra - For homework I must use the numbers 1,2,3,4,5,6,7,8,and ...

Math - If the digits 1 through 9 are written in order, it is possible to place ...

Math - Working with simple addition and multiplication of positive and negative ...

math - Use the numbers 1 -12. Each row, column, and diagonal must equal 26. The...

statistics - in certain lottery, you must select 6 numbers (in any order)out of ...

Math - Can someone tell me how to solve my problem? Do I just start plugging in ...

algebra - I worked the problem out, but could you check my work over and see if ...

math, beginning algebra - how do i solve the following equations. Problem # 1 3x...

AP Calc - Simplify the fraction: (x^3-7x^2+17x-15)/(x-3) and solve numerically ...