Pre-Secondary One Hong Kong Attainment Test · Mathematics

Length (mm, cm, m, km): Practice Questions

4 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Length (mm, cm, m, km).

7 questions12 marksFree, no account

Question 1

1 mark

A piece of ribbon is 3 m long. After using 45 cm to wrap a gift and another 120 mm to make a small bow, what is the length of the remaining ribbon in centimetres (cm)?

Question 2

1 mark

A wire is \(5.4\text{ m}\) long. It is cut into several pieces, each with a length of \(15\text{ cm}\). How many pieces can be cut from the wire?

Question 3

1 mark

An athlete runs around a square field with an area of \(0.09\text{ km}^2\). If he runs around the field \(5\text{ times}\), what is the total distance he covers in metres?

Question 4

1 mark

A string of beads is 48 cm long. If each bead is 8 mm wide, how many beads are there in the string?

Question 5

2 marks

A stack of 50 identical coins has a total thickness of 12 cm. What is the thickness of each coin in millimetres (mm)?

Write your answer out first, then check it against the worked solution.

Question 6

4 marks

A rectangular path is 25 m long and 80 cm wide. What is the difference between the length and the width of the path in millimetres (mm)?

Write your answer out first, then check it against the worked solution.

Question 7

2 marks

A length of ribbon is 1.8 m long. If Amy cuts it into 6 equal pieces, what is the length of each piece in centimetres (cm)?

Write your answer out first, then check it against the worked solution.

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