Basic Operations and Inverses

The video tutorial covers the use of identity and inverse operations to write equivalent expressions. It begins with an exercise on temperature change, demonstrating how to represent changes using expressions. The lesson then explores subtraction as adding the inverse, followed by exercises on collecting like terms and removing parentheses. Finally, the tutorial provides examples of using the multiplicative inverse, emphasizing its application in simplifying expressions.

What is the afternoon temperature if it was -12 degrees in the morning and rose by 12 degrees?

• 24 degrees

• -12 degrees

• 0 degrees

• 12 degrees

How can you rewrite the expression 2 - 2 using the concept of adding the inverse?

• 2 + 2

• -2 + 2

• 2 - (-2)

• 2 + (-2)

What is the result of adding 16 and 0?

• 0

• 16

• -16

• 32

In the expression 2x - 2x + 3, what is the simplified result?

• 5

• 0

• 3

• 2x

What is the multiplicative inverse of 1/5?

• 1/5

• 5

• 0.2

• -5

If you multiply 3/4 by 4/3, what is the result?

• 0

• 4/3

• 3/4

• 1

What is the result of multiplying negative 1/3 by negative 3?

• 1

• 3

• 0

• -1

How do you express the multiplicative inverse of 2?

• 0.5

• 1/2

• -2

• 2

What is the simplified form of 1/2 times 4?

• 2

• 4

• 1

• 0

What is the result of distributing 1/3 in the expression 3x + 5?

• x + 5/3

• 3x + 15

• 3x + 5

• x + 5