Adding and Subtracting Integers

When adding integers with the SAME sign...

• The sign stays the same
• The sign becomes the opposite
• the sign becomes positive
• the sign becomes negative

Tags

CCSS.7.NS.A.1C

When adding integers with DIFFERENT signs...

• you take the sign of the smaller absolute value
• you take the sign of the larger absolute value
• the sign becomes positive
• the sign becomes negative

Tags

CCSS.7.NS.A.1C

15+5

• 20

• -10

• -20

• 10

Tags

CCSS.7.NS.A.1C

-9 + (-5)

• -14
• 14
• -4
• 4

Tags

CCSS.7.NS.A.1C

10 + (-4) = ?

• -6
• 6
• 14
• -14

Tags

CCSS.7.NS.A.1C

-2 + 4

• -2

• 2

• 6

• -6

Tags

CCSS.7.NS.A.1C

45 + (-18)

• 63

• 27

• -27

• -63

Tags

CCSS.7.NS.A.1C

3 + (-7)

• 10
• 4
• -10
• -4

Tags

CCSS.7.NS.A.1C

-8 + 20

• -28

• 28

• -12

• 12

Tags

CCSS.7.NS.A.1C

When subtracting integers, apply the...

• Additive inverse
• commutative property
• associative property
• distributive property

Tags

CCSS.7.NS.A.1B