Evaluating Expressions and Word Problems

This video tutorial covers evaluating expressions through real-world examples. It begins with a problem involving splitting the cost of a pizza and salad among friends, demonstrating addition and division. The lesson progresses to a problem about calculating the number of working computers in a school, using multiplication and subtraction. The tutorial emphasizes the importance of order of operations in solving expressions. The video concludes with additional practice problems and encourages students to reach out for further assistance if needed.

What is the main focus of this week's lesson?

• Exploring algebraic equations

• Understanding geometry

• Learning about fractions

• Evaluating expressions

If three friends share the cost of a $15 pizza and a $6 salad, which expression represents how much each person pays?

• (15 + 6) * 3

• 15 / 3 + 6

• 15 + 6 / 3

• (15 + 6) / 3

How much does each friend pay for the pizza and salad?

• $8

• $6

• $7

• $5

A school has two computer labs with 30 computers each, and 6 are not working. Which expression finds the number of working computers?

• 2 * 30 - 6

• 30 * 2 + 6

• 2 * (30 - 6)

• 2 + 30 - 6

How many computers are working in the school?

• 48

• 60

• 54

• 50

What is the first step in solving the expression 10.5 - 7 + 4 * 3?

• Add 10.5 and 4

• Divide 10.5 by 3

• Multiply 4 by 3

• Subtract 7 from 10.5

What is the result of the expression 10.5 - 7 + 4 * 3?

• 15.5

• 12.5

• 14.5

• 13.5

What is the result of 16 divided by 8 plus 24 divided by 6?

• 10

• 8

• 4

• 6

What is the value of 22/7 - 2/3 divided by 2?

• 1/5

• 1/4

• 1/3

• 1/2

What does the expression 889 * 27 + 50 represent?

• 50 more than 889 times 27

• 27 less than 889 times 50

• 50 less than 889 times 27

• 27 more than 889 times 50