Integer Operations Review Part 2

Integer Operations Review Part 2

Operations with Integers

OBJ: To Multiply, Divide, Add, and Subtract Integers

Adding Integers

If the integers have the same signs, keep the sign and add the numbers.

If the integers have different signs, subtract the numbers and use the sign of the larger absolute value

Multiple Choice

When ADDing two integers with the SAME SIGN...

• Add and keep the same sign.

• Add and change the sign.

• Subtract and keep the same sign.

• Subtract and change the sign.

Multiple Choice

7 + (-13)

• -6

• 6

• -20

• 20

Subtracting Integers

Rewrite the subtraction as addition of the opposite using KEEP - CHANGE - CHANGE then use your addition rules for integers.

Example 1: 3 - (-7) becomes 3 + 7 and 3 + 7 = 10

Example 2: 9 - 4 becomes 9 + (-4) and 9 + (-4) = 5

Multiple Choice

Subtracting a negative is the same thing as...

• Becoming more negative

• Adding a positive

• Becoming 0

• Impossibility

Multiple Choice

3 - 11

• -8

• 8

• -14

• 14

Multiple Choice

A team gains 20 yards.  Then they lose 7 yards.  Find the sum. 

• 13 yards
• 27 yards
• -13 yards 
• -27 yards 

Multiple Choice

Roger owes his mom $5.  He borrows another $6 from her.  How much does Roger owe his mother? 

• $11
• $1
• $6
  $6

Multiple Choice

7 - (-4) =

• 11

• -11

• 3

• -3

Multiple Choice

-1 - 5 =

• 4

• 6

• -6

• -4

Multiplying and Dividing Integers

If the two integers have the same signs, the answer will be positive!

If the two integers have different signs, the answer will be negative!

Multiple Choice

-5 x 9

• -45

• 45

• 4

• yellow

Multiple Choice

4(-6)

• 24

• -24

• -10

• 10

Multiple Choice

-1(-9)

• -9

• 10

• 9

• -10

Multiple Choice

12(-2)

• -24

• 24

• -14

• 14

Multiple Choice

-32 / 8

• 4

• -4

• 256

• -256

Multiple Choice

• 6
• -6
• 7
• -7

Multiple Choice

• 4
• -4
• 64
• -46

Multiple Choice

• -4
• 4
• 16
• -16