Free Grade 3 Working with Introducing Estimation Common Errors Worksheets
Free Grade 3 worksheets for Working with Introducing 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
Core
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with introducing estimation common errors
Explain working with introducing estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with introducing estimation common errors
Calculate working with introducing estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with introducing estimation common errors
Compare working with introducing estimation common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with introducing estimation common errors
Justify working with introducing 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 Introducing 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 512 to the nearest 10.[1]
- 2.Round 704 to the nearest 10.[1]
- 3.Round 802 to the nearest 10.[1]
- 4.Round 791 to the nearest 10.[1]
- 5.Round 6,456 to the nearest 10.[2]
- 6.Round 198 to the nearest 10.[2]
- 7.Round 1,044 to the nearest 100.[2]
- 8.Round 807 to the nearest 100.[2]
- 9.Round 86,245 to the nearest 1,000.[3]
- 10.Round 16,305 to the nearest 1,000.[3]
- 11.Round 86,581 to the nearest 1,000.[3]
- 12.Round 1,165 to the nearest 1,000.[3]
Show answers and working
1. 510
Find the two multiples of 10 either side: 510 and 520. Look at the digit to the right of the rounding place: 5 or more rounds up. 512 rounds to 510.
2. 700
Find the two multiples of 10 either side: 700 and 710. Look at the digit to the right of the rounding place: 5 or more rounds up. 704 rounds to 700.
3. 800
Find the two multiples of 10 either side: 800 and 810. Look at the digit to the right of the rounding place: 5 or more rounds up. 802 rounds to 800.
4. 790
Find the two multiples of 10 either side: 790 and 800. Look at the digit to the right of the rounding place: 5 or more rounds up. 791 rounds to 790.
5. 6,460
Find the two multiples of 10 either side: 6450 and 6460. Look at the digit to the right of the rounding place: 5 or more rounds up. 6456 rounds to 6460.
6. 200
Find the two multiples of 10 either side: 190 and 200. Look at the digit to the right of the rounding place: 5 or more rounds up. 198 rounds to 200.
7. 1,000
Find the two multiples of 100 either side: 1000 and 1100. Look at the digit to the right of the rounding place: 5 or more rounds up. 1044 rounds to 1000.
8. 800
Find the two multiples of 100 either side: 800 and 900. Look at the digit to the right of the rounding place: 5 or more rounds up. 807 rounds to 800.
9. 86,000
Find the two multiples of 1000 either side: 86000 and 87000. Look at the digit to the right of the rounding place: 5 or more rounds up. 86245 rounds to 86000.
10. 16,000
Find the two multiples of 1000 either side: 16000 and 17000. Look at the digit to the right of the rounding place: 5 or more rounds up. 16305 rounds to 16000.
11. 87,000
Find the two multiples of 1000 either side: 86000 and 87000. Look at the digit to the right of the rounding place: 5 or more rounds up. 86581 rounds to 87000.
12. 1,000
Find the two multiples of 1000 either side: 1000 and 2000. Look at the digit to the right of the rounding place: 5 or more rounds up. 1165 rounds to 1000.
Worked examples
Round 231 to the nearest 10.
- Find the two multiples of 10 either side: 230 and 240.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 231 rounds to 230.
- Answer: 230
Round 9,569 to the nearest 100.
- Find the two multiples of 100 either side: 9500 and 9600.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 9569 rounds to 9600.
- Answer: 9,600
Round 39,403 to the nearest 100.
- Find the two multiples of 100 either side: 39400 and 39500.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 39403 rounds to 39400.
- Answer: 39,400
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
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- 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 Rules and Methods in Introducing Estimation Common Errors, Key Vocabulary of Introducing Estimation Common Errors, Introducing Estimation Word Problems. Each one has its own free lesson, worksheet and quiz.
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- 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 Introducing Estimation Common Errors?
- Move on to Introducing Estimation Common Errors in Examinations, Introducing Estimation Essentials, Introducing Estimation Techniques, Introducing Estimation Word Problems, which build directly on this idea.
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