Year 9 number quiz to download as PDF

This Year 9 number quiz has 10 short questions for pupils aged 13-14. Type your answer, check it straight away and read the explanation when you get one wrong.

Year 9 number quiz: the 10 questions

Round 6.0749 to 2 decimal places.
What is 8 764 to 1 significant figure?
Estimate \(4.9 \times 20.2\) by rounding to 1 s.f.
Write the error interval for 15 given to the nearest 5.
What is the upper bound of 4.6 to 1 d.p.?
Is \(\sqrt{2}\) rational or irrational?
Is 0.125 rational or irrational?
A side is 10 cm to the nearest cm. What is its lower bound?
Which sign is used for the upper bound in an error interval: \(\lt \) or \(\le\)?
Round 0.0902 to 1 significant figure.

How to use this Year 9 number quiz

First, answer every question without a calculator unless the question says so. Then check your answer and read the short explanation. If you get fewer than 7 right, revise the number: approximation, error intervals and calculators lesson and try again later. After that, try the multiple choice questions or the number: approximation, error intervals and calculators worksheet.

Finally, take this quiz again before a test, because quick retrieval helps you remember. Moreover, all the pages of this chapter work together, so you can move between them at any time. For example, many pupils read the lesson on Monday, practise on Wednesday and test themselves on Friday.