Free Grade 3 Working with Estimation Lessons
Free Grade 3 lessons for Working with Estimation: 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.
- RememberIdentify working with estimation
Identify working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with estimation
Explain working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation
Calculate working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation
Compare working with estimation 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 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 789 to the nearest 10.[1]
- 2.Round 517 to the nearest 10.[1]
- 3.Round 189 to the nearest 10.[1]
- 4.Round 908 to the nearest 10.[1]
- 5.Round 5,922 to the nearest 10.[2]
- 6.Round 9,457 to the nearest 10.[2]
- 7.Round 1,712 to the nearest 10.[2]
- 8.Round 4,281 to the nearest 10.[2]
- 9.Round 99,285 to the nearest 1,000.[3]
- 10.Round 65,033 to the nearest 1,000.[3]
- 11.Round 59,767 to the nearest 1,000.[3]
- 12.Round 77,504 to the nearest 100.[3]
Show answers and working
1. 790
Find the two multiples of 10 either side: 780 and 790. Look at the digit to the right of the rounding place: 5 or more rounds up. 789 rounds to 790.
2. 520
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. 517 rounds to 520.
3. 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. 189 rounds to 190.
4. 910
Find the two multiples of 10 either side: 900 and 910. Look at the digit to the right of the rounding place: 5 or more rounds up. 908 rounds to 910.
5. 5,920
Find the two multiples of 10 either side: 5920 and 5930. Look at the digit to the right of the rounding place: 5 or more rounds up. 5922 rounds to 5920.
6. 9,460
Find the two multiples of 10 either side: 9450 and 9460. Look at the digit to the right of the rounding place: 5 or more rounds up. 9457 rounds to 9460.
7. 1,710
Find the two multiples of 10 either side: 1710 and 1720. Look at the digit to the right of the rounding place: 5 or more rounds up. 1712 rounds to 1710.
8. 4,280
Find the two multiples of 10 either side: 4280 and 4290. Look at the digit to the right of the rounding place: 5 or more rounds up. 4281 rounds to 4280.
9. 99,000
Find the two multiples of 1000 either side: 99000 and 100000. Look at the digit to the right of the rounding place: 5 or more rounds up. 99285 rounds to 99000.
10. 65,000
Find the two multiples of 1000 either side: 65000 and 66000. Look at the digit to the right of the rounding place: 5 or more rounds up. 65033 rounds to 65000.
11. 60,000
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. 59767 rounds to 60000.
12. 77,500
Find the two multiples of 100 either side: 77500 and 77600. Look at the digit to the right of the rounding place: 5 or more rounds up. 77504 rounds to 77500.
Worked examples
Round 857 to the nearest 10.
- Find the two multiples of 10 either side: 850 and 860.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 857 rounds to 860.
- Answer: 860
Round 4,459 to the nearest 100.
- Find the two multiples of 100 either side: 4400 and 4500.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 4459 rounds to 4500.
- Answer: 4,500
Round 58,143 to the nearest 1,000.
- Find the two multiples of 1000 either side: 58000 and 59000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 58143 rounds to 58000.
- Answer: 58,000
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.
Every free resource for Working with Estimation
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Frequently asked
- Is this Grade 3 Working with Estimation 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, Rounding. 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?
- Move on to Estimation in Context, Reading Whole Numbers, Place Value, Digits, which build directly on this idea.
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