Mastering 8th Grade Math Concepts and Test Strategies

This video tutorial covers various 8th-grade math topics, including combining like terms, solving problems with variables, creating equations for real-world scenarios, identifying multiples, divisibility, calculating means, interpreting graphs, and rounding numbers. Each section provides a detailed explanation and example problems to enhance understanding.

How do you combine terms with the same variable exponent?

• Subtract their exponents

• Divide their coefficients

• Multiply their coefficients

• Add their coefficients

If Keisha has half as many quarters as dimes, which variable represents quarters?

• d / 2

• d / 4

• 2d

• d * 2

How many quarters does Keisha have if she has twice as many quarters as nickels?

• d / 2

• 2n

• n / 2

• d / 4

What is the cost of renting a camera for 3 hours?

• $17.25

• $12.75

• $13.25

• $9.25

What is the correct equation for the cost of renting the camera?

• C = (4 + 5.25)h

• C = 4(h + 5.25)

• C = 4h + 5.25

• C = 5.25h + 4

Which number is a multiple of 12?

• 34

• 55

• 29

• 48

Which set of numbers are all divisible by 3?

• 12, 21, 27, 33

• 14, 22, 28, 34

• 15, 23, 29, 35

• 16, 24, 30, 36

What is the mean number of hours spent on leisure activities by teens?

• 30 hours

• 25 hours

• 15 hours

• 20 hours

Which statement is not supported by the graph?

• As height increases, weight decreases.

• The graph shows a positive trend.

• Taller people weigh more.

• Weight is unrelated to height.

What is 0.8945 rounded to the nearest hundredth?

• 0.90

• 0.894

• 0.89

• 0.895