Free Grade 3 Working with Rounding Common Errors Lesson Plans
Free Grade 3 lesson plans for Working with Rounding Common Errors: 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
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with rounding common errors
Identify working with rounding common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with rounding common errors
Explain working with rounding common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with rounding common errors
Calculate working with rounding common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with rounding common errors
Compare working with rounding common errors 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 Rounding Common Errors 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 231 to the nearest 10.[1]
- 2.Round 729 to the nearest 10.[1]
- 3.Round 326 to the nearest 10.[1]
- 4.Round 219 to the nearest 10.[1]
- 5.Round 6,997 to the nearest 100.[2]
- 6.Round 9,418 to the nearest 100.[2]
- 7.Round 8,146 to the nearest 100.[2]
- 8.Round 5,467 to the nearest 100.[2]
- 9.Round 46,664 to the nearest 100.[3]
- 10.Round 40,672 to the nearest 100.[3]
- 11.Round 61,667 to the nearest 100.[3]
- 12.Round 10,636 to the nearest 100.[3]
Show answers and working
1. 230
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. 231 rounds to 230.
2. 730
Find the two multiples of 10 either side: 720 and 730. Look at the digit to the right of the rounding place: 5 or more rounds up. 729 rounds to 730.
3. 330
Find the two multiples of 10 either side: 320 and 330. Look at the digit to the right of the rounding place: 5 or more rounds up. 326 rounds to 330.
4. 220
Find the two multiples of 10 either side: 210 and 220. Look at the digit to the right of the rounding place: 5 or more rounds up. 219 rounds to 220.
5. 7,000
Find the two multiples of 100 either side: 6900 and 7000. Look at the digit to the right of the rounding place: 5 or more rounds up. 6997 rounds to 7000.
6. 9,400
Find the two multiples of 100 either side: 9400 and 9500. Look at the digit to the right of the rounding place: 5 or more rounds up. 9418 rounds to 9400.
7. 8,100
Find the two multiples of 100 either side: 8100 and 8200. Look at the digit to the right of the rounding place: 5 or more rounds up. 8146 rounds to 8100.
8. 5,500
Find the two multiples of 100 either side: 5400 and 5500. Look at the digit to the right of the rounding place: 5 or more rounds up. 5467 rounds to 5500.
9. 46,700
Find the two multiples of 100 either side: 46600 and 46700. Look at the digit to the right of the rounding place: 5 or more rounds up. 46664 rounds to 46700.
10. 40,700
Find the two multiples of 100 either side: 40600 and 40700. Look at the digit to the right of the rounding place: 5 or more rounds up. 40672 rounds to 40700.
11. 61,700
Find the two multiples of 100 either side: 61600 and 61700. Look at the digit to the right of the rounding place: 5 or more rounds up. 61667 rounds to 61700.
12. 10,600
Find the two multiples of 100 either side: 10600 and 10700. Look at the digit to the right of the rounding place: 5 or more rounds up. 10636 rounds to 10600.
Worked examples
Round 476 to the nearest 10.
- Find the two multiples of 10 either side: 470 and 480.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 476 rounds to 480.
- Answer: 480
Round 9,829 to the nearest 10.
- Find the two multiples of 10 either side: 9820 and 9830.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 9829 rounds to 9830.
- Answer: 9,830
Round 88,587 to the nearest 1,000.
- Find the two multiples of 1000 either side: 88000 and 89000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 88587 rounds to 89000.
- Answer: 89,000
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 Rounding Common Errors 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 Working with Rounding Word Problems, Working with Rounding Techniques, Introducing Rounding. 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 Working with Rounding Common Errors?
- Move on to Introducing Rounding, Rounding in Context, which build directly on this idea.
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