Rounding Decimals (Year 5)

Round decimals to the nearest whole number and to a given number of places.

The questions below are generated to match the National Curriculum for Year 5 and get harder as you progress from Rookie to Guru.

Worked examples

RookieRead and interpret directly.

Round 8.46 to 1 decimal place.

  • 8.6
  • 8
  • 8.4
  • 8.5

Answer: 8.5. Look at the hundredths digit of 8.46. Round the tenths up if it is 5 or more, otherwise keep it: 8.46 → 8.5.

ProCompare and infer.

Round 9.83 to 1 decimal place.

  • 10
  • 9.8
  • 9.9

Answer: 9.8. Look at the hundredths digit of 9.83. Round the tenths up if it is 5 or more, otherwise keep it: 9.83 → 9.8.

GuruMulti-step reasoning.

A teacher marks 0.5 = 1/2 as wrong. Is the teacher right? Why?

  • No — the teacher is wrong. 0.5 = 5/10 = 1/2. They're equal.
  • Yes — 0.5 ≠ 1/2.
  • Cannot tell.
  • Yes — 0.5 = 1/5.

Answer: No — the teacher is wrong. 0.5 = 5/10 = 1/2. They're equal.. 0.5 = 5/10 = 1/2.

Related skills

Frequently asked questions

What is rounding decimals?
Round decimals to the nearest whole number and to a given number of places.
How can my child practise rounding decimals at home?
Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.

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