Math Skills Challenge for Grade 8

Ava has 5 apples and she buys some more apples. If she now has a total of 20 apples, how many apples did she buy?

• 5

• 15

• 0

• 10

What is the area of a circle with a radius of 7 cm?

• 150.00 cm²

• 160.00 cm²

• 154.00 cm²

• 153.94 cm²

Olivia is planning a trip to Europe and wants to convert 100 USD to EUR. If the exchange rate is 0.85, how much will she get in EUR?

• 90 EUR

• 80 EUR

• 75 EUR

• 85 EUR

Evaluate the expression: 2a + 3b when a = 4 and b = 5.

• 23

• 18

• 25

• 20

If 5 apples cost $3, how much do 15 apples cost?

• $6.00

• $15.00

• $12.00

• $9.00

Solve for y: 2y - 4 = 10

• 7

• 3

• 10

• 5

Calculate the area of a circle with a diameter of 10 m.

• 31.42 m²

• 50.24 m²

• 78.54 m²

• 100.00 m²

Evaluate the expression: 4x^2 - 2x + 1 when x = 3.

• 35

• 22

• 31

• 28

If 3 shirts cost $45, how much do 8 shirts cost?

• $120

• $75

• $150

• $90

Solve for z: 5z + 2 = 17

• 5

• 2

• 3

• 4