Subtracting Integers

What is the rules for subtracting integers?

• Change to multiplication and use the opposite of the second number.
• Change to addition and use the opposite of the second number.
• Find the opposite of both numbers and then add. 
• Subtract like normal and keep the larger sign. 

Tags

CCSS.7.NS.A.1C

How would -9 -(-5) look like as an addition problem?

• -9 + (-5)
• 9 + 5
• -9 + 5
• 9 + (-5)

Tags

CCSS.7.NS.A.1B

What would 12 - 20 look like as a addition problem?

• 12 + (-20)
• -12 + (-20)
• 12 + 20
• -12 + 20

Tags

CCSS.7.NS.A.1B

Change 5 - 2 into an addition problem and solve.

• 7

• 3

• -3

• -7

Change -3 - 2 into and addition expression and solve.

• -1

• -5

• 1

• 6

Change -7 - 2 into an addition expression and solve.

• -9

• 9

• 5

• -5

19 - (-19)

• 0
• 36
• 26
• 38

Tags

CCSS.7.NS.A.1C

Change -7 - (-7) into an addition problem and solve.

• 14

• 0

• -14

• 1

The temperature on a cold winter day starts out at 10 degrees, but it drops rapidly 24 degrees due to a strong cold front moving in.  What is the current temperature?

• 14
• 34
• -14
• -34

Tags

CCSS.7.NS.A.3

I had $-25 in my account.  I deposited $70 into my account.  How much money do I have now?

• $105
• $-45
• $45
• -$105

Tags

CCSS.7.NS.A.1C