Interesting Integers

Learn About Integers

What is an Integer?

Integer- A whole number or it's opposite ex. -9=9

How to Add Integers

Same signs- Add the absolute values and use the common sign. ex. 3+5=8 -3+(-)5=-8

Different signs- Subtract the lesser absolute value from the greater absolute value. Then use the sign of the number with the greater absolute value. ex. -7+10=3 7+(-10)= -3

How to Subtract Integers

To subtract an integer add its opposite. ex. 7-(-)5= 12

Now You Try!

Key Vocabulary!

Vocabulary

Negative Integers- integers that are less than zero

Positive Integers- integers that are greater than zero

Opposites- numbers that are the same distance from zero on a number line, but are on opposite sides of zero

Absolute Value- the absolute value of a number is its distance from zero on a number line, the absolute value of a is written |a|

How to Multiply Integers

The product of two positive integers is positive ex. 3(5)=15

The product of two negative integers is positive ex. -4(-6)=24

The product of a positive integer and a negative integer is negative ex. 2(-8)=-16

How to Divide Integers

Same Sign- the quotient of two integers with the same sign is positive Ex. 15÷3=5

Different Signs- the quotient of two integers with different signs is negative ex. 12÷ (-4)=-3

Zero- the quotient of zero and any nonzero integer is 0 ex. 0÷13=0

Now You Try!

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