This Year 10 units, estimation, rounding and bounds quiz has 10 short questions for pupils aged 14-15. Type your answer, check it straight away and read the explanation when you get one wrong.
Year 10 units, estimation, rounding and bounds quiz: the 10 questions
- How many grams are in 2.5 kg?\(\times1000\).
- Round 7.456 to 1 decimal place.The second decimal digit is 5.
- Round 0.0583 to 1 significant figure.First s.f. is 5; next digit 8, round up.
- How many cm\(^3\) are in 1 litre?1 litre = 1000 cm\(^3\).
- Estimate \(19.8\times5.1\).\(20\times5\).
- A number is 40 to the nearest 10. What is the smallest it could be?Half of 10 below 40.
- What is 54 km/h in m/s?\(54\div3.6\).
- Write the error interval for 12 to the nearest whole number.Half a unit.
- (Higher) The upper bound of 3.5 (1 d.p.) is?\(3.5+0.05\).
- (Higher) 2.5 and 3.5 both to 1 d.p. What is the lower bound of their sum?\(2.45+3.45\).
How to use this Year 10 units, estimation, rounding and bounds 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 units, estimation, rounding and bounds lesson and try again later. After that, try the multiple choice questions or the units, estimation, rounding and bounds 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.


















