Free Grade 3 Rules and Methods in Working with Estimation Techniques Lessons
Free Grade 3 lessons 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
25 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 259 to the nearest 10.[1]
- 2.Round 251 to the nearest 10.[1]
- 3.Round 111 to the nearest 10.[1]
- 4.Round 561 to the nearest 10.[1]
- 5.Round 3,470 to the nearest 10.[2]
- 6.Round 2,706 to the nearest 100.[2]
- 7.Round 9,330 to the nearest 10.[2]
- 8.Round 7,123 to the nearest 10.[2]
- 9.Round 55,829 to the nearest 1,000.[3]
- 10.Round 19,562 to the nearest 1,000.[3]
- 11.Round 89,500 to the nearest 100.[3]
- 12.Round 7,334 to the nearest 1,000.[3]
Show answers and working
1. 260
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. 259 rounds to 260.
2. 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.
3. 110
Find the two multiples of 10 either side: 110 and 120. Look at the digit to the right of the rounding place: 5 or more rounds up. 111 rounds to 110.
4. 560
Find the two multiples of 10 either side: 560 and 570. Look at the digit to the right of the rounding place: 5 or more rounds up. 561 rounds to 560.
5. 3,470
Find the two multiples of 10 either side: 3470 and 3470. Look at the digit to the right of the rounding place: 5 or more rounds up. 3470 rounds to 3470.
6. 2,700
Find the two multiples of 100 either side: 2700 and 2800. Look at the digit to the right of the rounding place: 5 or more rounds up. 2706 rounds to 2700.
7. 9,330
Find the two multiples of 10 either side: 9330 and 9330. Look at the digit to the right of the rounding place: 5 or more rounds up. 9330 rounds to 9330.
8. 7,120
Find the two multiples of 10 either side: 7120 and 7130. Look at the digit to the right of the rounding place: 5 or more rounds up. 7123 rounds to 7120.
9. 56,000
Find the two multiples of 1000 either side: 55000 and 56000. Look at the digit to the right of the rounding place: 5 or more rounds up. 55829 rounds to 56000.
10. 20,000
Find the two multiples of 1000 either side: 19000 and 20000. Look at the digit to the right of the rounding place: 5 or more rounds up. 19562 rounds to 20000.
11. 89,500
Find the two multiples of 100 either side: 89500 and 89500. Look at the digit to the right of the rounding place: 5 or more rounds up. 89500 rounds to 89500.
12. 7,000
Find the two multiples of 1000 either side: 7000 and 8000. Look at the digit to the right of the rounding place: 5 or more rounds up. 7334 rounds to 7000.
Worked examples
Round 899 to the nearest 10.
- Find the two multiples of 10 either side: 890 and 900.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 899 rounds to 900.
- Answer: 900
Round 6,338 to the nearest 100.
- Find the two multiples of 100 either side: 6300 and 6400.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 6338 rounds to 6300.
- Answer: 6,300
Round 73,840 to the nearest 100.
- Find the two multiples of 100 either side: 73800 and 73900.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 73840 rounds to 73800.
- Answer: 73,800
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 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 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 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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