Algebraic Expressions and Operations

This video is a chapter 7 review for 6th graders, focusing on practicing math skills learned throughout the chapter. It includes exercises on exponents, writing expressions, combining like terms, using the distributive property, and applying the order of operations (PEMDAS). The video guides students through solving problems and checking their answers, preparing them for the chapter 7 test.

How many times is the base 3 repeated in the expression from exercise 1?

• Twice

• Once

• Three times

• Four times

What is the correct expression for the cost of books including shipping if each book costs $6 and shipping is $4?

• 6b + 4

• 4b + 6

• 6 + 4b

• 4 + 6b

What is the simplified form of 22n + 30n?

• 32n

• 62n

• 52n

• 42n

What should be done first according to the order of operations in the expression (3 + 4)²?

• Parentheses

• Exponentiation

• Multiplication

• Addition

What is the value of 4³?

• 16

• 64

• 48

• 32

What is the algebraic expression for 'nine times a number n'?

• 9 + n

• n/9

• n - 9

• 9n

If a waiter earns $60 plus $10 per table, how much does he earn for serving 9 tables?

• $90

• $150

• $180

• $120

What is the simplified form of 3k - k?

• 4k

• 2k

• k

• 5k

What is the correct order of operations for the expression 3 + 4 * 2?

• Division first

• Subtraction first

• Multiplication first

• Addition first

What is the final simplified value of the expression (8 - 6)² + 3 * 8?

• 16

• 48

• 24

• 36