Free Grade 3 Working with Estimation Essentials Lessons
Free Grade 3 lessons for 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
Core
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation essentials
Explain working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation essentials
Calculate working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation essentials
Compare working with estimation essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation essentials
Justify 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 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 315 to the nearest 10.[1]
- 2.Round 163 to the nearest 10.[1]
- 3.Round 847 to the nearest 10.[1]
- 4.Round 251 to the nearest 10.[1]
- 5.Round 439 to the nearest 10.[2]
- 6.Round 7,528 to the nearest 100.[2]
- 7.Round 4,154 to the nearest 100.[2]
- 8.Round 1,332 to the nearest 10.[2]
- 9.Round 68,229 to the nearest 1,000.[3]
- 10.Round 26,175 to the nearest 1,000.[3]
- 11.Round 81,721 to the nearest 1,000.[3]
- 12.Round 24,876 to the nearest 1,000.[3]
Show answers and working
1. 320
Find the two multiples of 10 either side: 310 and 320. Look at the digit to the right of the rounding place: 5 or more rounds up. 315 rounds to 320.
2. 160
Find the two multiples of 10 either side: 160 and 170. Look at the digit to the right of the rounding place: 5 or more rounds up. 163 rounds to 160.
3. 850
Find the two multiples of 10 either side: 840 and 850. Look at the digit to the right of the rounding place: 5 or more rounds up. 847 rounds to 850.
4. 250
Find the two multiples of 10 either side: 250 and 260. Look at the digit to the right of the rounding place: 5 or more rounds up. 251 rounds to 250.
5. 440
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. 439 rounds to 440.
6. 7,500
Find the two multiples of 100 either side: 7500 and 7600. Look at the digit to the right of the rounding place: 5 or more rounds up. 7528 rounds to 7500.
7. 4,200
Find the two multiples of 100 either side: 4100 and 4200. Look at the digit to the right of the rounding place: 5 or more rounds up. 4154 rounds to 4200.
8. 1,330
Find the two multiples of 10 either side: 1330 and 1340. Look at the digit to the right of the rounding place: 5 or more rounds up. 1332 rounds to 1330.
9. 68,000
Find the two multiples of 1000 either side: 68000 and 69000. Look at the digit to the right of the rounding place: 5 or more rounds up. 68229 rounds to 68000.
10. 26,000
Find the two multiples of 1000 either side: 26000 and 27000. Look at the digit to the right of the rounding place: 5 or more rounds up. 26175 rounds to 26000.
11. 82,000
Find the two multiples of 1000 either side: 81000 and 82000. Look at the digit to the right of the rounding place: 5 or more rounds up. 81721 rounds to 82000.
12. 25,000
Find the two multiples of 1000 either side: 24000 and 25000. Look at the digit to the right of the rounding place: 5 or more rounds up. 24876 rounds to 25000.
Worked examples
Round 736 to the nearest 10.
- Find the two multiples of 10 either side: 730 and 740.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 736 rounds to 740.
- Answer: 740
Round 7,244 to the nearest 100.
- Find the two multiples of 100 either side: 7200 and 7300.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 7244 rounds to 7200.
- Answer: 7,200
Round 45,521 to the nearest 100.
- Find the two multiples of 100 either side: 45500 and 45600.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 45521 rounds to 45500.
- Answer: 45,500
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 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 Working with Estimation Essentials?
- Move on to Working with Estimation Techniques, Working with Estimation Word Problems, Working with Estimation Common Errors, Introducing Estimation, which build directly on this idea.
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