ADDING-SUBTRACTING-MULTIPLYING-DIVIDING INTEGERS

Same Signs

Step 1: Add the absolute values

Step 2: Keep the common sign

• Dividing Integer Rule

• Subtracting Integer Rule

• Adding Integer Rule

• Multiplying Integer Rule

Different Signs

Step 1: Subtract the absolute value of

the smaller from the larger

Step 2: Keep the sign of the larger

• Adding Integer Rule

• Subtracting Integer Rule

• Multiplying Integer Rule

• Dividing Integer Rule

-75 + (-12)

• -87

• 87

• -63

• 63

-101 + 52

• -162

• 162

• 47

• -47

Rewrite the subtraction problem as an addition problem.

-12- (-6)

• 12 + 6

• -12 + 6

• -12 + (-6)

• -12 + (-6)

Clarise has $290 in her checking account. She writes checks for $102 and $75 and then makes a deposit of $170. Find the amount left in her account.

• $282

• $77

• $177

• $280

Suppose a deep-sea diver dives from the surface to 125 feet below the surface. She then dives 12 more feet. What is her present depth as a signed number?

• -113 feet

• 137 feet

• -137 feet

• 113 feet

What is the additive inverse of -2?

• 1/2

• 2

• 1/2

• -2

Find the sum:

(+6) + (-7)

• 13

• -13

• -1

• 1

Find the Difference

(-7) – (-1)

• -8

• -6

• 8

• 6