Adding, subtracting, multiplying and Dividing integers

Answer the following:

12 + (-3) =

• 15

• -15

• 9

• -9

Tags

CCSS.7.NS.A.1C

What is the rule when adding integers?

For example: 13 + (-1) =

• If the signs are the same, add and keep the sign. If the signs are different, subtract and keep the sign of the larger whole number.

• A negative times a negative equals a positive.

• Same, Change, Change

• A negative divided by a positive equals a negative.

Tags

CCSS.7.NS.A.1C

What sign would your answer have if you multiply a negative by a negative?

For example: -9(-9) =

• Positive

• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What would your answer by when you multiply two numbers with different signs?

For example: -5(8) =

• Positive

• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Solve: 10 - (-18) =

• 8

• 28

• -8

• -28

Tags

CCSS.7.NS.A.1C

What are the rules when multiplying or dividing integers?

• Same, Change, Change

• When Multiplying or dividing two integers, if the signs are the same, the answer is negative, but if the signs are different, the sign is positive.

• When multiplying or dividing two integers, if the signs are the same, the answer is positive, but if the signs are different, the sign is negative.

• Same, Same, Change

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Solve: $12\ \div\ \left(-2\right)\ =$  

Is your answer positive or negative?

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

True or False: The answer to the equation -10(-5) is positive.

• True

• False

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Solve: -5 + (-10) =

• 5

• -15

• -5

• 15

Tags

CCSS.7.NS.A.1C

Which operations do the following rules work for:

Signs of two numbers are different, answer is negative

Signs of two numbers are the same, answer is positive

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.7.NS.A.1D