Challenging Maths for Grade 8

What is the value of x in the equation 2x + 3 = 11?

• 7

• 2

• 5

• 4

Calculate the area of a triangle with a base of 10 cm and a height of 5 cm.

• 30 cm²

• 15 cm²

• 20 cm²

• 25 cm²

If a rectangle has a length of 8 cm and a width of 3 cm, what is its perimeter?

• 18 cm

• 24 cm

• 12 cm

• 22 cm

Solve for y: 3y - 7 = 2y + 5.

• 12

• 10

• 5

• 15

What is the square root of 144?

• 10

• 12

• 16

• 14