Free Grade 3 Working with Estimation in Context Common Errors: Real-life Applications Worksheets
Free Grade 3 worksheets for Working with Estimation in Context Common Errors: Real-life Applications: 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
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with estimation in context common errors: real-life applications
Explain working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation in context common errors: real-life applications
Calculate working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation in context common errors: real-life applications
Compare working with estimation in context common errors: real-life applications accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with estimation in context common errors: real-life applications
Justify working with estimation in context common errors: real-life applications 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 in Context Common Errors: Real-life Applications 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 914 to the nearest 10.[1]
- 2.Round 521 to the nearest 10.[1]
- 3.Round 422 to the nearest 10.[1]
- 4.Round 487 to the nearest 10.[1]
- 5.Round 211 to the nearest 100.[2]
- 6.Round 416 to the nearest 10.[2]
- 7.Round 4,627 to the nearest 100.[2]
- 8.Round 3,741 to the nearest 10.[2]
- 9.Round 56,070 to the nearest 1,000.[3]
- 10.Round 35,122 to the nearest 1,000.[3]
- 11.Round 41,014 to the nearest 1,000.[3]
- 12.Round 66,826 to the nearest 1,000.[3]
Show answers and working
1. 910
Find the two multiples of 10 either side: 910 and 920. Look at the digit to the right of the rounding place: 5 or more rounds up. 914 rounds to 910.
2. 520
Find the two multiples of 10 either side: 520 and 530. Look at the digit to the right of the rounding place: 5 or more rounds up. 521 rounds to 520.
3. 420
Find the two multiples of 10 either side: 420 and 430. Look at the digit to the right of the rounding place: 5 or more rounds up. 422 rounds to 420.
4. 490
Find the two multiples of 10 either side: 480 and 490. Look at the digit to the right of the rounding place: 5 or more rounds up. 487 rounds to 490.
5. 200
Find the two multiples of 100 either side: 200 and 300. Look at the digit to the right of the rounding place: 5 or more rounds up. 211 rounds to 200.
6. 420
Find the two multiples of 10 either side: 410 and 420. Look at the digit to the right of the rounding place: 5 or more rounds up. 416 rounds to 420.
7. 4,600
Find the two multiples of 100 either side: 4600 and 4700. Look at the digit to the right of the rounding place: 5 or more rounds up. 4627 rounds to 4600.
8. 3,740
Find the two multiples of 10 either side: 3740 and 3750. Look at the digit to the right of the rounding place: 5 or more rounds up. 3741 rounds to 3740.
9. 56,000
Find the two multiples of 1000 either side: 56000 and 57000. Look at the digit to the right of the rounding place: 5 or more rounds up. 56070 rounds to 56000.
10. 35,000
Find the two multiples of 1000 either side: 35000 and 36000. Look at the digit to the right of the rounding place: 5 or more rounds up. 35122 rounds to 35000.
11. 41,000
Find the two multiples of 1000 either side: 41000 and 42000. Look at the digit to the right of the rounding place: 5 or more rounds up. 41014 rounds to 41000.
12. 67,000
Find the two multiples of 1000 either side: 66000 and 67000. Look at the digit to the right of the rounding place: 5 or more rounds up. 66826 rounds to 67000.
Worked examples
Round 874 to the nearest 10.
- Find the two multiples of 10 either side: 870 and 880.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 874 rounds to 870.
- Answer: 870
Round 8,105 to the nearest 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.
- 8105 rounds to 8100.
- Answer: 8,100
Round 14,790 to the nearest 1,000.
- Find the two multiples of 1000 either side: 14000 and 15000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 14790 rounds to 15000.
- Answer: 15,000
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
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- Move on to Introduction to Estimation in Context Common Errors, Key Vocabulary of Estimation in Context Common Errors, Rules and Methods in Estimation in Context Common Errors, Estimation in Context Common Errors in Examinations, which build directly on this idea.
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