Free Grade 3 Working with Estimation Common Errors Worksheets
Free Grade 3 worksheets for Working with Estimation Common Errors: 12 real questions with a full answer key and worked solutions. Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
Free
Stretch
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation common errors
Explain working with estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation common errors
Calculate working with estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation common errors
Compare working with estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation common errors
Justify working with estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Working with Estimation Common Errors works
Rounding gives a simpler number that is close to the real one. Look at the digit just right of the place you round to: 5 or more rounds up, 4 or less rounds down.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Round 537 to the nearest 10.[1]
- 2.Round 757 to the nearest 10.[1]
- 3.Round 446 to the nearest 10.[1]
- 4.Round 411 to the nearest 10.[1]
- 5.Round 1,771 to the nearest 100.[2]
- 6.Round 4,601 to the nearest 10.[2]
- 7.Round 530 to the nearest 10.[2]
- 8.Round 3,955 to the nearest 10.[2]
- 9.Round 42,478 to the nearest 1,000.[3]
- 10.Round 8,210 to the nearest 100.[3]
- 11.Round 86,972 to the nearest 100.[3]
- 12.Round 5,092 to the nearest 100.[3]
Show answers and working
1. 540
Find the two multiples of 10 either side: 530 and 540. Look at the digit to the right of the rounding place: 5 or more rounds up. 537 rounds to 540.
2. 760
Find the two multiples of 10 either side: 750 and 760. Look at the digit to the right of the rounding place: 5 or more rounds up. 757 rounds to 760.
3. 450
Find the two multiples of 10 either side: 440 and 450. Look at the digit to the right of the rounding place: 5 or more rounds up. 446 rounds to 450.
4. 410
Find the two multiples of 10 either side: 410 and 420. Look at the digit to the right of the rounding place: 5 or more rounds up. 411 rounds to 410.
5. 1,800
Find the two multiples of 100 either side: 1700 and 1800. Look at the digit to the right of the rounding place: 5 or more rounds up. 1771 rounds to 1800.
6. 4,600
Find the two multiples of 10 either side: 4600 and 4610. Look at the digit to the right of the rounding place: 5 or more rounds up. 4601 rounds to 4600.
7. 530
Find the two multiples of 10 either side: 530 and 530. Look at the digit to the right of the rounding place: 5 or more rounds up. 530 rounds to 530.
8. 3,960
Find the two multiples of 10 either side: 3950 and 3960. Look at the digit to the right of the rounding place: 5 or more rounds up. 3955 rounds to 3960.
9. 42,000
Find the two multiples of 1000 either side: 42000 and 43000. Look at the digit to the right of the rounding place: 5 or more rounds up. 42478 rounds to 42000.
10. 8,200
Find the two multiples of 100 either side: 8200 and 8300. Look at the digit to the right of the rounding place: 5 or more rounds up. 8210 rounds to 8200.
11. 87,000
Find the two multiples of 100 either side: 86900 and 87000. Look at the digit to the right of the rounding place: 5 or more rounds up. 86972 rounds to 87000.
12. 5,100
Find the two multiples of 100 either side: 5000 and 5100. Look at the digit to the right of the rounding place: 5 or more rounds up. 5092 rounds to 5100.
Worked examples
Round 553 to the nearest 10.
- Find the two multiples of 10 either side: 550 and 560.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 553 rounds to 550.
- Answer: 550
Round 2,867 to the nearest 10.
- Find the two multiples of 10 either side: 2860 and 2870.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 2867 rounds to 2870.
- Answer: 2,870
Round 41,948 to the nearest 1,000.
- Find the two multiples of 1000 either side: 41000 and 42000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 41948 rounds to 42000.
- Answer: 42,000
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Looks at the wrong digit to decide whether to round up.
Correction: Underline the rounding place, then circle the digit to its right.
Changes the digits after the rounding place to anything other than 0.
Correction: Every digit after the rounding place becomes 0.
Teacher tips
- · Use a number line showing the two multiples either side.
Parent tips
- · Estimate the shopping bill to the nearest dollar.
Real-life applications
- · Estimating the total of a shopping trip before paying.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Working with Estimation Common Errors worksheet really free?
- Yes. Every worksheets on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Working with Estimation Word Problems, Working with Estimation Techniques, Introducing Estimation. Each one has its own free lesson, worksheet and quiz.
- How is the worksheet sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Working with Estimation Common Errors?
- Move on to Introducing Estimation, Estimation in Context, which build directly on this idea.
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