Free Grade 3 Working with Estimation in Context Common Errors Worksheets
Free Grade 3 worksheets for Working with Estimation in Context 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
Higher
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with estimation in context common errors
Identify working with estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with estimation in context common errors
Explain working with estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation in context common errors
Calculate working with estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation in context common errors
Compare working with estimation in context 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 in Context 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 188 to the nearest 10.[1]
- 2.Round 769 to the nearest 10.[1]
- 3.Round 380 to the nearest 10.[1]
- 4.Round 281 to the nearest 10.[1]
- 5.Round 3,880 to the nearest 100.[2]
- 6.Round 9,428 to the nearest 100.[2]
- 7.Round 6,123 to the nearest 100.[2]
- 8.Round 2,223 to the nearest 10.[2]
- 9.Round 64,242 to the nearest 100.[3]
- 10.Round 16,323 to the nearest 100.[3]
- 11.Round 98,698 to the nearest 1,000.[3]
- 12.Round 42,113 to the nearest 100.[3]
Show answers and working
1. 190
Find the two multiples of 10 either side: 180 and 190. Look at the digit to the right of the rounding place: 5 or more rounds up. 188 rounds to 190.
2. 770
Find the two multiples of 10 either side: 760 and 770. Look at the digit to the right of the rounding place: 5 or more rounds up. 769 rounds to 770.
3. 380
Find the two multiples of 10 either side: 380 and 380. Look at the digit to the right of the rounding place: 5 or more rounds up. 380 rounds to 380.
4. 280
Find the two multiples of 10 either side: 280 and 290. Look at the digit to the right of the rounding place: 5 or more rounds up. 281 rounds to 280.
5. 3,900
Find the two multiples of 100 either side: 3800 and 3900. Look at the digit to the right of the rounding place: 5 or more rounds up. 3880 rounds to 3900.
6. 9,400
Find the two multiples of 100 either side: 9400 and 9500. Look at the digit to the right of the rounding place: 5 or more rounds up. 9428 rounds to 9400.
7. 6,100
Find the two multiples of 100 either side: 6100 and 6200. Look at the digit to the right of the rounding place: 5 or more rounds up. 6123 rounds to 6100.
8. 2,220
Find the two multiples of 10 either side: 2220 and 2230. Look at the digit to the right of the rounding place: 5 or more rounds up. 2223 rounds to 2220.
9. 64,200
Find the two multiples of 100 either side: 64200 and 64300. Look at the digit to the right of the rounding place: 5 or more rounds up. 64242 rounds to 64200.
10. 16,300
Find the two multiples of 100 either side: 16300 and 16400. Look at the digit to the right of the rounding place: 5 or more rounds up. 16323 rounds to 16300.
11. 99,000
Find the two multiples of 1000 either side: 98000 and 99000. Look at the digit to the right of the rounding place: 5 or more rounds up. 98698 rounds to 99000.
12. 42,100
Find the two multiples of 100 either side: 42100 and 42200. Look at the digit to the right of the rounding place: 5 or more rounds up. 42113 rounds to 42100.
Worked examples
Round 297 to the nearest 10.
- Find the two multiples of 10 either side: 290 and 300.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 297 rounds to 300.
- Answer: 300
Round 7,857 to the nearest 100.
- Find the two multiples of 100 either side: 7800 and 7900.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 7857 rounds to 7900.
- Answer: 7,900
Round 59,605 to the nearest 1,000.
- Find the two multiples of 1000 either side: 59000 and 60000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 59605 rounds to 60000.
- Answer: 60,000
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
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- What should a learner already know before this?
- Start with Rules and Methods in Estimation in Context Common Errors, Key Vocabulary of Estimation in Context Common Errors, Estimation in Context 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 Estimation in Context Common Errors?
- Move on to Estimation in Context Common Errors in Examinations, Estimation in Context Essentials, Estimation in Context Techniques, Estimation in Context Word Problems, which build directly on this idea.
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