Evaluating Expressions with Parentheses

The video tutorial teaches how to evaluate mathematical expressions by interpreting parentheses as the first operation to perform. It covers the order of operations, emphasizing that multiplication and division should be done before addition and subtraction. Two example problems are solved: one involving calculating the total sugar needed for baking and another about calculating remaining money after expenses. The tutorial explains the use of parentheses and brackets to group operations, ensuring clarity in solving expressions.

Nicole wants to make 7 batches of cookies and cupcakes. How many cups of sugar does she need in total?

• 25 cups

• 35 cups

• 40 cups

• 30 cups

In the expression 25 - 12 ÷ 3 x 6, which operation should be performed first?

• Subtraction

• Multiplication

• Division

• Addition

Bob had $30 for meals over two days. How much did he spend in total?

• $40

• $10

• $20

• $30

What is the purpose of using parentheses in mathematical expressions?

• To divide numbers

• To indicate operations to be done first

• To subtract numbers

• To add numbers

When should brackets be used in mathematical expressions?

• To group values for additional operations

• To add numbers

• To subtract numbers

• To multiply numbers