Place value, ordering and rounding Quiz - Mathematics Number

Free practice quiz: Place value, ordering and rounding (Mathematics Number). 12 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This Mathematics Number practice quiz has 12 multiple-choice questions on Place value, ordering and rounding, and 12 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Work out 4.7 × 10.

   1. 0.47
   2. 47
   3. 470
   4. 40.7
   Show answer

   Answer: B. 47

   Multiplying by 10 moves each digit one place to the left: 4.7 becomes 47.

2. Work out 5.6 ÷ 10.

   1. 56
   2. 5.06
   3. 0.056
   4. 0.56
   Show answer

   Answer: D. 0.56

   Dividing by 10 moves each digit one place to the right: 5.6 becomes 0.56.

3. Work out 0.073 × 1000.

   1. 7.3
   2. 73
   3. 730
   4. 0.73
   Show answer

   Answer: B. 73

   Multiplying by 1000 moves each digit three places to the left: 0.073 becomes 73.

4. Round 7.842 to 2 decimal places.

   1. 7.84
   2. 7.85
   3. 7.8
   4. 7.9
   Show answer

   Answer: A. 7.84

   Look at the third decimal digit, 2. It is less than 5, so keep 7.84.

5. Round 0.0861 to 2 decimal places.

   1. 0.08
   2. 0.086
   3. 0.09
   4. 0.1
   Show answer

   Answer: C. 0.09

   The third decimal digit is 6, so round the second digit up: 0.08 becomes 0.09.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Work out 3.2 × 100.
2. Work out 450 ÷ 100.
3. Work out 82 ÷ 1000.
4. Round 3.456 to 1 decimal place.
5. Round 12.678 to 2 decimal places.
6. Round 5.999 to 1 decimal place.
7. A runner's time is 11.347 seconds. Round it to 2 decimal places.

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