Exploring Recording Techniques with Screencast-O-Matic

Which operations do the properties of operations apply to?

• Addition and Subtraction

• Multiplication and Division

• Addition and Multiplication

• Subtraction and Division

What does the commutative property state?

• Changing the order of numbers does not change the result.

• Adding zero to a number does not change the number.

• Multiplying a number by one does not change the number.

• Changing the grouping of numbers does not change the result.

What is the associative property concerned with?

• The inverse of numbers

• The order of numbers

• The grouping of numbers

• The identity of numbers

In the associative property, which grouping would you choose to simplify 7 + 6 + 8?

• (7 + 6) + 8

• 7 + (6 + 8)

• (7 + 8) + 6

• 7 + 6 + 8

What does the identity property state for addition?

• Adding one to a number does not change the number.

• Multiplying a number by one does not change the number.

• Adding zero to a number does not change the number.

• Multiplying a number by zero does not change the number.

What is the identity element for multiplication?

• 10

• Any number

• 1

• 0

What does the inverse property state for addition?

• Multiplying a number by one does not change the number.

• Adding zero to a number does not change the number.

• Multiplying a number and its reciprocal results in one.

• Adding a number and its opposite results in zero.

What is the inverse operation of multiplication?

• Division

• Addition

• Multiplication

• Subtraction

What does the distributive property allow you to do?

• Add numbers in any order.

• Distribute a factor across a sum or difference inside parentheses.

• Multiply numbers in any order.

• Group numbers in any way.

How would you simplify 8 × 98 using the distributive property?

• 8 × (100 - 2)

• 8 × (90 + 8)

• 8 × (100 + 2)

• 8 × (90 - 2)