Free Grade 3 Estimation in Context Common Errors Quizzes
Free Grade 3 quizzes for 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
Foundation
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain estimation in context common errors
Explain estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate estimation in context common errors
Calculate estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare estimation in context common errors
Compare estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify estimation in context common errors
Justify 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 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 718 to the nearest 10.[1]
- 2.Round 424 to the nearest 10.[1]
- 3.Round 768 to the nearest 10.[1]
- 4.Round 398 to the nearest 10.[1]
- 5.Round 5,307 to the nearest 100.[2]
- 6.Round 4,588 to the nearest 10.[2]
- 7.Round 863 to the nearest 100.[2]
- 8.Round 9,629 to the nearest 10.[2]
- 9.Round 79,055 to the nearest 1,000.[3]
- 10.Round 30,722 to the nearest 1,000.[3]
- 11.Round 65,487 to the nearest 100.[3]
- 12.Round 50,813 to the nearest 1,000.[3]
Show answers and working
1. 720
Find the two multiples of 10 either side: 710 and 720. Look at the digit to the right of the rounding place: 5 or more rounds up. 718 rounds to 720.
2. 420
Find the two multiples of 10 either side: 420 and 430. Look at the digit to the right of the rounding place: 5 or more rounds up. 424 rounds to 420.
3. 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. 768 rounds to 770.
4. 400
Find the two multiples of 10 either side: 390 and 400. Look at the digit to the right of the rounding place: 5 or more rounds up. 398 rounds to 400.
5. 5,300
Find the two multiples of 100 either side: 5300 and 5400. Look at the digit to the right of the rounding place: 5 or more rounds up. 5307 rounds to 5300.
6. 4,590
Find the two multiples of 10 either side: 4580 and 4590. Look at the digit to the right of the rounding place: 5 or more rounds up. 4588 rounds to 4590.
7. 900
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. 863 rounds to 900.
8. 9,630
Find the two multiples of 10 either side: 9620 and 9630. Look at the digit to the right of the rounding place: 5 or more rounds up. 9629 rounds to 9630.
9. 79,000
Find the two multiples of 1000 either side: 79000 and 80000. Look at the digit to the right of the rounding place: 5 or more rounds up. 79055 rounds to 79000.
10. 31,000
Find the two multiples of 1000 either side: 30000 and 31000. Look at the digit to the right of the rounding place: 5 or more rounds up. 30722 rounds to 31000.
11. 65,500
Find the two multiples of 100 either side: 65400 and 65500. Look at the digit to the right of the rounding place: 5 or more rounds up. 65487 rounds to 65500.
12. 51,000
Find the two multiples of 1000 either side: 50000 and 51000. Look at the digit to the right of the rounding place: 5 or more rounds up. 50813 rounds to 51000.
Worked examples
Round 422 to the nearest 10.
- Find the two multiples of 10 either side: 420 and 430.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 422 rounds to 420.
- Answer: 420
Round 9,981 to the nearest 10.
- Find the two multiples of 10 either side: 9980 and 9990.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 9981 rounds to 9980.
- Answer: 9,980
Round 51,109 to the nearest 100.
- Find the two multiples of 100 either side: 51100 and 51200.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 51109 rounds to 51100.
- Answer: 51,100
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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Frequently asked
- Is this Grade 3 Estimation in Context Common Errors quiz really free?
- Yes. Every quizzes 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 Estimation in Context Word Problems, Estimation in Context Techniques, Working with Estimation. Each one has its own free lesson, worksheet and quiz.
- How is the quiz 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 Estimation in Context Common Errors?
- Move on to Introducing Estimation, Working with Estimation, which build directly on this idea.
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