Mastering Integer Multiplication and Division

The video tutorial covers the basics of multiplying and dividing integers, starting with the definition of integers and their properties. It explains the concept of double negatives and how they affect mathematical operations. The tutorial identifies patterns in multiplication results and provides rules for determining the sign of answers in multiplication and division. It also covers evaluating expressions by substituting values, handling integers with exponents, and understanding absolute value. The session concludes with an interactive game to reinforce the learning concepts.

What is the definition of integers?

• Whole numbers and their opposites

• Only negative numbers

• Numbers with decimal points

• Only positive numbers

What happens when you multiply two negative numbers?

• The result is undefined

• The result is always positive

• The result is always negative

• The result is zero

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

If a multiplication problem has an odd number of negative signs, what will be the sign of the result?

• Undefined

• Zero

• Negative

• Positive

Tags

CCSS.7.NS.A.2A

How do you determine the sign of the result in a multiplication or division problem?

• By the number of digits

• By the size of the numbers

• By counting the number of negative signs

• By the number of positive signs

Tags

CCSS.3.OA.D.9

What is the result of 5 times 4 if there is one negative sign?

• 20

• -20

• 0

• -1

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What does it mean to evaluate an expression?

• To multiply all the numbers

• To divide all the numbers

• To substitute numbers for variables

• To add all the numbers

Tags

CCSS.6.EE.A.2C

What is the result of 6 times -2 times -9?

• 108

• -1

• 0

• -108

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of (-2)^2?

• -2

• 0

• 4

• -4

Tags

CCSS.6.EE.A.1

What is the absolute value of -3?

• 0

• -3

• 3

• 1

Tags

CCSS.6.NS.C.7C

What is the result of -7 times the absolute value of 5?

• 35

• -35

• -1

• 0

Tags

CCSS.7.NS.A.2A