Adding and Subtracting Integers

Vocabulary

100

What is an Integer?

a number with a positive or a negative sign before it

200

What does it mean to be a positive number?

you are a number that comes after zero, so you are bigger than zero

300

What does it mean to be a negative number?

you are a number that comes before zero, so you are smaller than zero

400

What does "equation" mean?

A math sentence that states that 2 math expressions are equal

500

What is a number line?

It is a math tool that has numbers that are positive,negative or some have both. Each number has a point.This tool helps us with adding and subtracting integers.

problems with + and -

100

Solve this:

-5 + 5 =?

0

200

37 - (-24) = ?

61

300

-29 + 32 = ?

3

400

-50 + (+136) = ?

86

500

212 + (-156) = ?

56

problems with + and +

100

+28 + (+14) = ?

+42

200

+25 + (+38) = ?

+63

300

+368 - (+254) = ?

+114

400

+522 - (+498) = ?

+24

500

+1,472 + (+ 1,698) = ?

+3,170

Subtracting integers

100

If you subtract 2 positive numbers and the smaller one is first will you end up with a positive or negative number?

Negative number

200

When subtracting integers what are you trying to find?

The difference

Adding integers

100

When adding 2 positive numbers, will you get a positive or negative number?

Positive number

200

When adding integers what are you trying to find?

The sum