Grade 8 Mathematics Periodical Test REVIEWER

It is the sum of the data values divided by the number of values. It is also the balance point of distribution.

• Data

• Mean

• Median

• Mode

A student surveyed seven classmates about how many hours they study each day. The responses were: 1, 2, 3, 4, 2, 3, 2. What is the mean (average) number of study hours per day?

• The average number of study hours per day is 2.43.

• The average number of study hours per day is 2.50.

• The average number of study hours per day is 2.57.

• The average number of study hours per day is 2.71.

What is the operation used to combine the terms in the expression 2x + 5x?

• Addition

• Division

• Multiplication

• Subtraction

The process of finding the factors of an expression which is the reverse of multiplication is __________________.

• Adding

• Factoring

• Multiplying

• Subtracting

What is the Greatest Common Factor (GCF) of 24 and 54?

• 2

• 4

• 5

• 6

What is the result of adding monomials 4x and 7x?

• 11x

• 28x

• X11

• 4x2 + 7x

Which of the following shows the correct subtraction of monomials: 9a - 3a?

• 6

• 6a

• 6a2

• 9-3a6

A large water tank is used to store water for the school garden. The tank can hold a total of x liters of water when it is completely full. Right now, there are already 200 liters of water inside the tank. If the gardener pours another y liters of water into the tank, what will be the total amount of water in the tank now?

• x + y

• x – 200 + y

• 200 + y

• x + 200 + y

Patricia is saving money for her vacation. Right now, she has ₱y in her savings. Every week, she saves ₱50. If she saves for w weeks , how much money will she have in total?

• 50y + w

• y – 50w

• y + 50w

• 𝑦/50

Lysa has (2x + 5) pesos in her wallet. She uses (x – 2) pesos to buy her lunch. How much money does she have left after lunch?

• x – 7

• x + 3

• 3x + 3

• x + 7