---
title: "Rounding Answers"
description: "Solve problems which require answers to be rounded to specified degrees of accuracy"
canonical: https://lightmysky.com/learn/mathematics/rounding-answers-mt_QU5R7Aajy9
source: https://lightmysky.com/learn/mathematics/rounding-answers-mt_QU5R7Aajy9.md
retrieved: 2026-10-19
---

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# Rounding Answers

Solve problems which require answers to be rounded to specified degrees of accuracy

Subject: Mathematics · Area: Multiplication & Division · Ages 10 to 11
Page: https://lightmysky.com/learn/mathematics/rounding-answers-mt_QU5R7Aajy9

## Ready when they can

- Compute a division and round the result to one decimal place as specified
- Determine the appropriate degree of accuracy for a measurement context (e.g. round to nearest penny)
- Solve a problem where an unrounded decimal answer must be interpreted in context (e.g. whole containers needed)

## Lesson: Rounding Answers to the Right Accuracy

When you divide, the answer often comes out as a long decimal, like 3.2857142857. Most questions do not want every digit. They ask for a certain level of accuracy, such as one decimal place, the nearest penny, or a sensible whole number.

**Example.** Share 23 cups of flour equally among 7 bags. 23 divided by 7 is 3.2857142... The question asks for one decimal place, so look at the second decimal digit, which is 8. Since 8 is 5 or more, round the first decimal digit up: 3.3 cups.

**Tip.** To round to one decimal place, check the digit right after it. Five or more, round up. Less than five, leave the digit as it is.

**Example.** Three friends split a £15.50 bill evenly. £15.50 divided by 3 is £5.1666... Money is only written to the nearest penny, so round to two decimal places: £5.17 each.

**Example.** A shed holds 40 chairs per box, and 130 chairs need packing. 130 divided by 40 is 3.25 boxes. You cannot buy part of a box, so you need 4 whole boxes, even though 3.25 would usually round down to 3.

**Recap.** Check what the question needs, a number of decimal places, the nearest penny, or a sensible whole amount, then round to match.

## Practice

20 questions on this page, each with its working shown.

## Needs first

- [Rounding to a required degree of accuracy](https://lightmysky.com/learn/mathematics/rounding-to-a-required-degree-of-accuracy-mt__casygEB85)
- [Estimation to check answers to calculations](https://lightmysky.com/learn/mathematics/estimation-to-check-answers-to-calculations-mt_ilPrU0cbtT)
- [Division with Decimals](https://lightmysky.com/learn/mathematics/division-with-decimals-mt_lU-2aTRB9f)

## Opens up

- [Bounds and error in rounded values](https://lightmysky.com/learn/mathematics/bounds-and-error-in-rounded-values-mt_VVn1IXjkzn)
