Subtracting Integers

What is the rule 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

-3 - 2

• -1
• -5
• 1
• 6

Tags

CCSS.7.NS.A.1C

19 - (-19)

• 0
• 36
• 26
• 38

Tags

CCSS.7.NS.A.1C

-7 - (-7)

• 14
• 0
• -14
• 1

Tags

CCSS.7.NS.A.1C

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

what is -22 - (-7)

• -15

• -29

• 15

• 29

Tags

CCSS.7.NS.A.1C

Using additive inverse, write this subtraction problem as an addition problem.

15 - 45

• 15 + 45

• 15 + (-45)

• -15 + 45

• -15 + (-45)

• 15 - 45

Tags

CCSS.7.NS.A.1B

3 - 9

• 6

• 12

• -12

• -6

Tags

CCSS.7.NS.A.1C