Integer Operations

Integer Operations

Review how to add, subtract, multiply, and divide integers.

Adding Integers

When you add inverses, they always cancel eachother out so you get zero.

Adding Two Negative Numbers

• Add them and keep the sign

Multiple Choice

What is-3 + (-10)

• 13

• -13

• 7

• -7

Adding Integers with DIFFERENT SIGNS

• Subtract them
• Keep the sign of the LARGER NUMBER (absolute value)

Multiple Choice

Solve -13 + 3

• -10

• 10

• 16

• -16

Subtracting Integers

• Keep, Change, Change
• Add the Opposite

Open Ended

5 - (-4) What do you do to the subtraction sign? How would you rewrite this problem?

Open Ended

Solve -7 - 8 after you Keep, Change, Change

Multiple Choice

-9 - (-2) Which of the following is correct after you keep, change, change?

• 9 + 2

• -9 + 2

• -9 + (-2)

Multiplying and Dividing Integers

• Same Signs= Positive Answer
• Different Signs= Negative Answer

Multiple Select

Select ALL of the answers that are NEGATIVE

• -5 x 6

• -21/-3

• 8 x (-12)

• -4/2