CHSS Math Bowl 2026

Number Theory

100

1. Round 6,487 to the nearest hundred.

1. 6,500

200

Round 45,708 to the nearest thousand

1. 46, 000

300

1. Evaluate  5 + 4 X (2 + 1 - 3)

5

400

Calculate and give the answer correct to one decimal place

 4.5 + 2.07

4.6

500

Calculate and give the answer correct to one significant figure

1824 divided by 6

300

Ratio, LCM, HCF

100

Write the next three multiples of 7 after 21.

28, 35, 42

200

Find the HCF of 12 and 18.

6

300

List all the prime factors of 24.

2 and 3

400

What are the first three common multiples of 2 and 3?

6, 12, 24

500

$300 is divided in the ratio 2:3. What is the difference between the larger and smaller share.

$60

Measure-ment

100

Convert 3 km to metres

3000 m

200

Find the perimeter of a rectangle with length 8 cm and width 5 cm.

26 cm

300

Find the volume of a cube with side 4 cm.

64 cubic centimetres

400

Find the circumference of a circle with radius 7 cm. Use pi as 22/7.

44 cm

500

Find the area of the circle with radius 7 cm. Use pi as 22/7.

154 square centimetres

Algebra

100

Let y = 3
Find the value of 4y.

12

200

If  x = 2 and y = 3 , find y - x

1

300

Simplify 5a - 7a + 3a

a

400

If a = 4 and b = -2, evaluate 3a +5b

2

500

Solve 5x - 4 = 6

2