Integer Rules Adding and Subtracting

When subtracting integers you must________________________.

• Subtract like normal.

• Keep the first sign, keep it a subtracting problem, and find the reciprocal of the second integer.

• Keep the first sign, keep it a subtracting problem, and find the opposite of the second integer.

• Keep the first sign, change it to addition, find the opposite of the second integer, use your adding rules.

Tags

CCSS.7.NS.A.1B

When adding integers with the same sign you ________________.

• Subtract and keep the sign of the larger number.

• Add and keep the sign.

Tags

CCSS.7.NS.A.1C

A negative PLUS a negative will give you what on your final answer.

• Positive

• Negative

Tags

CCSS.7.NS.A.1C

 2 - (- 2).... it is the same as 

• 2 - 2

• 2 + 2

• 2 + -2

• 2 - +2

Tags

CCSS.7.NS.A.1C

-5 − (-7)

• -12

• 12

• 2

• -2

Tags

CCSS.7.NS.A.1C

23 - 47 + 18 - (-12) =

• 6

• -18

• 56

Tags

CCSS.7.NS.A.3

Which expression is represented by the model?

• 5 x -2

• 5 + (-2)

• -5 - 2

• 5 - (-2)

Tags

CCSS.7.NS.A.1C

-21 + 14

• positive

• negative

Tags

CCSS.7.NS.A.1C

-5(-34)

• positive

• negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

83 - (-42)

• positive

• negative

Tags

CCSS.7.NS.A.1C