Math help

[jahexom]

I know there are some helpful math people out there, please help. Here is the question:

Insert operations symbols (add, subtract, multiply, divide) and/or parenthesis so that a true mathematical sentence is formed.
Do not change the order of the numbers. You may put two numbers together to form a two-digit number.

1 2 3 4 5 6 7 8=90

Thanks in advance, we've been working on this for a long time.

Jen

 

[damo]

1 + 23 + 45 + 6 + 7 + 8

 

[jahexom]

That gives me 100, what am I doing wrong?

 

[Kaycee]

1 + 2 - 3 + 4 + (5x6) + (7x8) = 90

 

[damo]

That gives me 100, what am I doing wrong?

Try that one. I thought it was supposed to be 100 for some reason. The new one works. There will be many answers.

 

[Serena]

You're too darn tired to think straight. That's what's wrong. Take a break and try again.

 

[damo]

Here's another
-1 + 2(34 + 5 + 6) -7 +8

 

[jahexom]

Thanks a bunch for the help. We will go with the answer in post #4. I knew I could count (pun intended) on you guys.

Jen

 

[damo]

Depending on what grade this is for, or how picky the teacher is, you might want to remove the brackets since they are not necessary in #4. Order of operations requires you to do the multiplication first anyway.

 

[jahexom]

Its 7th grade. She said it was okay to leave in the brackets. Thanks again.

Jen