Free Grade 3 Rules and Methods in Working with Estimation Techniques Lesson Plans
Free Grade 3 lesson plans for Rules and Methods in 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
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain rules and methods in working with estimation techniques
Explain rules and methods in working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in working with estimation techniques
Calculate rules and methods in working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in working with estimation techniques
Compare rules and methods in working with estimation techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify rules and methods in working with estimation techniques
Justify rules and methods in 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 Rules and Methods in 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 238 to the nearest 10.[1]
- 2.Round 902 to the nearest 10.[1]
- 3.Round 812 to the nearest 10.[1]
- 4.Round 404 to the nearest 10.[1]
- 5.Round 9,900 to the nearest 100.[2]
- 6.Round 9,736 to the nearest 10.[2]
- 7.Round 3,658 to the nearest 100.[2]
- 8.Round 3,628 to the nearest 10.[2]
- 9.Round 76,206 to the nearest 1,000.[3]
- 10.Round 68,293 to the nearest 100.[3]
- 11.Round 35,046 to the nearest 100.[3]
- 12.Round 78,388 to the nearest 1,000.[3]
Show answers and working
1. 240
Find the two multiples of 10 either side: 230 and 240. Look at the digit to the right of the rounding place: 5 or more rounds up. 238 rounds to 240.
2. 900
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. 902 rounds to 900.
3. 810
Find the two multiples of 10 either side: 810 and 820. Look at the digit to the right of the rounding place: 5 or more rounds up. 812 rounds to 810.
4. 400
Find the two multiples of 10 either side: 400 and 410. Look at the digit to the right of the rounding place: 5 or more rounds up. 404 rounds to 400.
5. 9,900
Find the two multiples of 100 either side: 9900 and 9900. Look at the digit to the right of the rounding place: 5 or more rounds up. 9900 rounds to 9900.
6. 9,740
Find the two multiples of 10 either side: 9730 and 9740. Look at the digit to the right of the rounding place: 5 or more rounds up. 9736 rounds to 9740.
7. 3,700
Find the two multiples of 100 either side: 3600 and 3700. Look at the digit to the right of the rounding place: 5 or more rounds up. 3658 rounds to 3700.
8. 3,630
Find the two multiples of 10 either side: 3620 and 3630. Look at the digit to the right of the rounding place: 5 or more rounds up. 3628 rounds to 3630.
9. 76,000
Find the two multiples of 1000 either side: 76000 and 77000. Look at the digit to the right of the rounding place: 5 or more rounds up. 76206 rounds to 76000.
10. 68,300
Find the two multiples of 100 either side: 68200 and 68300. Look at the digit to the right of the rounding place: 5 or more rounds up. 68293 rounds to 68300.
11. 35,000
Find the two multiples of 100 either side: 35000 and 35100. Look at the digit to the right of the rounding place: 5 or more rounds up. 35046 rounds to 35000.
12. 78,000
Find the two multiples of 1000 either side: 78000 and 79000. Look at the digit to the right of the rounding place: 5 or more rounds up. 78388 rounds to 78000.
Worked examples
Round 698 to the nearest 10.
- Find the two multiples of 10 either side: 690 and 700.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 698 rounds to 700.
- Answer: 700
Round 351 to the nearest 100.
- Find the two multiples of 100 either side: 300 and 400.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 351 rounds to 400.
- Answer: 400
Round 60,906 to the nearest 100.
- Find the two multiples of 100 either side: 60900 and 61000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 60906 rounds to 60900.
- Answer: 60,900
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 Rules and Methods in Working with Estimation Techniques lesson plan really free?
- Yes. Every lesson plans 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 Key Vocabulary of Working with Estimation Techniques, Introduction to Working with Estimation Techniques, Working with Estimation Essentials. Each one has its own free lesson, worksheet and quiz.
- How is the lesson plan 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 Rules and Methods in Working with Estimation Techniques?
- Move on to Working with Working with Estimation Techniques, Working with Estimation Techniques in Examinations, Working with Estimation Essentials, Working with Estimation Word Problems, which build directly on this idea.
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