These Year 9 number multiple choice questions check your understanding of number: approximation, error intervals and calculators with 10 questions for pupils aged 13-14. Each question has four answers, and the right one is explained as soon as you choose.
Year 9 number multiple choice questions: the 10 questions
What is 0.04561 to 2 significant figures?
A length is 9 cm to the nearest cm. Which is the correct error interval?
Which is the best estimate of \(\dfrac{8.9 \times 31}{0.48}\)?
Which of these is an irrational number?
A mass is 40 g to the nearest 10 g. What is the least possible mass?
35 678 rounded to 2 significant figures is:
A square has side 6 cm to the nearest cm. What is the greatest possible area?
To find the greatest value of \(a - b\) you should use:
A number is 2.5 to 1 d.p. Which number could NOT be the original?
The number 0.00608 has how many significant figures?
How to use these Year 9 number multiple choice questions
First, read each question carefully before you look at the four answers. Then work the answer out on paper, so that you do not simply guess. After that, read the explanation, even when you are right. If you score less than 7 out of 10, go back to the number: approximation, error intervals and calculators lesson.
Finally, practise more with the number: approximation, error intervals and calculators worksheet and the quiz. 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.


















