Rules of Integers

What are the rules for adding integers with different signs?

• Write S for same, and then add the numbers and keep the sign. 
• Write D for different; circle the number there is more of; subtract and keep the sign of the number you circled.

Tags

CCSS.7.NS.A.1C

Solve:
80 + (-8) =

• 88
• -88
• 72
• -72

Tags

CCSS.6.EE.B.5

CCSS.6.NS.C.5

Solve:
-15  -  3 =

• 12
• -12
• -18
• 18

Tags

CCSS.6.NS.C.5

CCSS.6.NS.C.6

Solve:
8  -  (-4) =

• 12
• -12
• 4
• -4

Tags

CCSS.6.NS.C.5

Solve:
-7(6) =

• -13
• -48
• 42
• -42

Tags

CCSS.7.NS.A.2

CCSS.7.NS.A.3

Solve:
-39 ÷ (-3) = 

• 42
• -42
• 13
• -13

Tags

CCSS.6.NS.B.2

CCSS.6.NS.C.5

(-2)(-4)(-3)

• 24
• -24
• 8
• -21

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If there are an odd number of negatives in a problem, the answer is
Example: (-4)(-5)(-2)

• Positive
• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

When you add two negative numbers, the answer is

• Positive

• Negative

• The sign depends on which number is larger

Tags

CCSS.7.NS.A.1C

When you add two positive numbers, your answer is

• Positive

• Negative

• The sign depends on which number is larger

Tags

CCSS.7.NS.A.1C