Free Grade 3 Introduction to Working with Estimation Essentials Lessons
Free Grade 3 lessons for Introduction to Working with Estimation Essentials: 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 introduction to working with estimation essentials
Explain introduction to working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introduction to working with estimation essentials
Calculate introduction to working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introduction to working with estimation essentials
Compare introduction to working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introduction to working with estimation essentials
Justify introduction to working with estimation essentials 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 Introduction to Working with Estimation Essentials 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 832 to the nearest 10.[1]
- 2.Round 353 to the nearest 10.[1]
- 3.Round 577 to the nearest 10.[1]
- 4.Round 667 to the nearest 10.[1]
- 5.Round 2,903 to the nearest 10.[2]
- 6.Round 9,193 to the nearest 10.[2]
- 7.Round 5,738 to the nearest 100.[2]
- 8.Round 8,391 to the nearest 100.[2]
- 9.Round 20,975 to the nearest 1,000.[3]
- 10.Round 89,778 to the nearest 1,000.[3]
- 11.Round 26,349 to the nearest 100.[3]
- 12.Round 17,533 to the nearest 100.[3]
Show answers and working
1. 830
Find the two multiples of 10 either side: 830 and 840. Look at the digit to the right of the rounding place: 5 or more rounds up. 832 rounds to 830.
2. 350
Find the two multiples of 10 either side: 350 and 360. Look at the digit to the right of the rounding place: 5 or more rounds up. 353 rounds to 350.
3. 580
Find the two multiples of 10 either side: 570 and 580. Look at the digit to the right of the rounding place: 5 or more rounds up. 577 rounds to 580.
4. 670
Find the two multiples of 10 either side: 660 and 670. Look at the digit to the right of the rounding place: 5 or more rounds up. 667 rounds to 670.
5. 2,900
Find the two multiples of 10 either side: 2900 and 2910. Look at the digit to the right of the rounding place: 5 or more rounds up. 2903 rounds to 2900.
6. 9,190
Find the two multiples of 10 either side: 9190 and 9200. Look at the digit to the right of the rounding place: 5 or more rounds up. 9193 rounds to 9190.
7. 5,700
Find the two multiples of 100 either side: 5700 and 5800. Look at the digit to the right of the rounding place: 5 or more rounds up. 5738 rounds to 5700.
8. 8,400
Find the two multiples of 100 either side: 8300 and 8400. Look at the digit to the right of the rounding place: 5 or more rounds up. 8391 rounds to 8400.
9. 21,000
Find the two multiples of 1000 either side: 20000 and 21000. Look at the digit to the right of the rounding place: 5 or more rounds up. 20975 rounds to 21000.
10. 90,000
Find the two multiples of 1000 either side: 89000 and 90000. Look at the digit to the right of the rounding place: 5 or more rounds up. 89778 rounds to 90000.
11. 26,300
Find the two multiples of 100 either side: 26300 and 26400. Look at the digit to the right of the rounding place: 5 or more rounds up. 26349 rounds to 26300.
12. 17,500
Find the two multiples of 100 either side: 17500 and 17600. Look at the digit to the right of the rounding place: 5 or more rounds up. 17533 rounds to 17500.
Worked examples
Round 212 to the nearest 10.
- Find the two multiples of 10 either side: 210 and 220.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 212 rounds to 210.
- Answer: 210
Round 1,525 to the nearest 100.
- Find the two multiples of 100 either side: 1500 and 1600.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 1525 rounds to 1500.
- Answer: 1,500
Round 14,666 to the nearest 100.
- Find the two multiples of 100 either side: 14600 and 14700.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 14666 rounds to 14700.
- Answer: 14,700
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 Introduction to Working with Estimation Essentials lesson really free?
- Yes. Every lessons 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 Introducing Estimation. Each one has its own free lesson, worksheet and quiz.
- How is the lesson 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 Introduction to Working with Estimation Essentials?
- Move on to Key Vocabulary of Working with Estimation Essentials, Rules and Methods in Working with Estimation Essentials, Working with Working with Estimation Essentials, Working with Estimation Essentials in Examinations, which build directly on this idea.
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