*On the third week, they doubled the sale of their second week. Yesterday and the day before it snowed without end.It is also helpful to read the problem well and look for what you are being asked to do or to find.*

*On the third week, they doubled the sale of their second week. * Yesterday and the day before it snowed without end.

Related Topics: More Algebra Word Problems Integer Problems with three unknowns are not necessarily more difficult than integer word problems with two unknowns.

You just have to be careful when relating the different unknowns. They sold 4 more boxes the second week than they did the first.

Temperature is a good way to remember what integers are.

An integer is any number that is not a fraction, decimal, or mixed number. Examples of integers include 3, 2, 1, 0, -1, -2, -3, and so on in both directions.

But now the sun has come out and things are starting to warm up. When you look out your window you can still see the snow. The waves are crashing and the sand is so warm under your feet. You look out your front window and see something like this. The temperature outside is a good way to remind yourself of what an integer is.

If it's warm outside, the temperature is going to be a positive integer, such as 83 degrees (F). If it is really cold, it may even get below zero and the temperature will become a negative integer such as -12 degrees (F).

Problem #2: A submarine at 21 feet below sea level suddenly moves up about 6 feet. Solution The problem has 2 important components shown in bold below.

Saved 200 can be represented by 200And is the sign Spent 150 can be represented by -150We get 200 -150 and 200 -150 = 50Maria has 50 dollars left.

A football team gained 6 yards and then lost 10 yards. Gained 6 can be represented by 6And is the sign Lost 10 can be represented by -10We get 6 -10 and 6 -10 = -4Overall the football team has lost 4 yards. He loaned 50 dollars to a friend, spent 31 dollars, and received his 80 dollars paycheck from work. Solution The problem has 4 important components shown in bold below.

Steve had 140 dollars received his 80 dollars paycheck from work. Had 140 dollars can be represented with 140Loaned 50 can be represented by -50Spent 31 can be represented by -31Received his 80 can be represented by 80We get 140 -50 -31 80 140 -50 -31 80 = (140 -50) -31 80 = 90 -31 80 = (90 -31) 80 = 59 80 = 139Steve has now 139 dollars.

## Comments Problem Solving With Integers

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