Math Challenges for Grade 8

What is the value of 7 x 8?

• 56

• 48

• 64

• 72

If a triangle has angles of 60° and 90°, what is the third angle?

• 75°

• 45°

• 30°

• 60°

What is 15% of 200?

• 50

• 40

• 30

• 25

Solve for x: 2x + 5 = 15

• 0

• 5

• 7

• 10

What is the perimeter of a rectangle with length 10 cm and width 5 cm?

• 30 cm

• 15 cm

• 20 cm

• 25 cm

If a circle has a radius of 7 cm, what is its diameter?

• 14 cm

• 8 cm

• 12 cm

• 10 cm

What is the least common multiple of 4 and 6?

• 12

• 10

• 8

• 14

If a book costs $12 and you buy 3, how much do you spend?

• $48

• $30

• $36

• $24

What is the area of a square with side length 4 cm?

• 20 cm²

• 16 cm²

• 12 cm²

• 8 cm²

If you roll a die, what is the probability of rolling a 3?

• 1/4

• 1/6

• 1/3

• 1/2