Free Grade 3 Working with Estimation Techniques Lessons
Free Grade 3 lessons for Working with Estimation Techniques: 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
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation techniques
Explain working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation techniques
Calculate working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation techniques
Compare working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation techniques
Justify working with estimation techniques 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 Techniques 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 606 to the nearest 10.[1]
- 2.Round 591 to the nearest 10.[1]
- 3.Round 760 to the nearest 10.[1]
- 4.Round 670 to the nearest 10.[1]
- 5.Round 1,562 to the nearest 100.[2]
- 6.Round 9,896 to the nearest 10.[2]
- 7.Round 1,098 to the nearest 100.[2]
- 8.Round 4,819 to the nearest 10.[2]
- 9.Round 21,385 to the nearest 100.[3]
- 10.Round 86,163 to the nearest 100.[3]
- 11.Round 60,649 to the nearest 1,000.[3]
- 12.Round 12,354 to the nearest 100.[3]
Show answers and working
1. 610
Find the two multiples of 10 either side: 600 and 610. Look at the digit to the right of the rounding place: 5 or more rounds up. 606 rounds to 610.
2. 590
Find the two multiples of 10 either side: 590 and 600. Look at the digit to the right of the rounding place: 5 or more rounds up. 591 rounds to 590.
3. 760
Find the two multiples of 10 either side: 760 and 760. Look at the digit to the right of the rounding place: 5 or more rounds up. 760 rounds to 760.
4. 670
Find the two multiples of 10 either side: 670 and 670. Look at the digit to the right of the rounding place: 5 or more rounds up. 670 rounds to 670.
5. 1,600
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. 1562 rounds to 1600.
6. 9,900
Find the two multiples of 10 either side: 9890 and 9900. Look at the digit to the right of the rounding place: 5 or more rounds up. 9896 rounds to 9900.
7. 1,100
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. 1098 rounds to 1100.
8. 4,820
Find the two multiples of 10 either side: 4810 and 4820. Look at the digit to the right of the rounding place: 5 or more rounds up. 4819 rounds to 4820.
9. 21,400
Find the two multiples of 100 either side: 21300 and 21400. Look at the digit to the right of the rounding place: 5 or more rounds up. 21385 rounds to 21400.
10. 86,200
Find the two multiples of 100 either side: 86100 and 86200. Look at the digit to the right of the rounding place: 5 or more rounds up. 86163 rounds to 86200.
11. 61,000
Find the two multiples of 1000 either side: 60000 and 61000. Look at the digit to the right of the rounding place: 5 or more rounds up. 60649 rounds to 61000.
12. 12,400
Find the two multiples of 100 either side: 12300 and 12400. Look at the digit to the right of the rounding place: 5 or more rounds up. 12354 rounds to 12400.
Worked examples
Round 438 to the nearest 10.
- Find the two multiples of 10 either side: 430 and 440.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 438 rounds to 440.
- Answer: 440
Round 6,516 to the nearest 100.
- Find the two multiples of 100 either side: 6500 and 6600.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 6516 rounds to 6500.
- Answer: 6,500
Round 49,876 to the nearest 1,000.
- Find the two multiples of 1000 either side: 49000 and 50000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 49876 rounds to 50000.
- Answer: 50,000
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 Techniques 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 Working with Estimation Essentials, 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 Working with Estimation Techniques?
- Move on to Working with Estimation Word Problems, Working with Estimation Common Errors, Introducing Estimation, Estimation in Context, which build directly on this idea.
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