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Free Grade 3 Working with Estimation in Context Common Errors Flashcards

Free Grade 3 flashcards for Working with Estimation in Context 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.

Price

Free

Difficulty

Stretch

Estimated time

30 min

Total marks

24

Learning objectives

Every objective is checkable, and each one maps to an activity and an assessment.

  • RememberIdentify working with estimation in context common errors

    Identify working with estimation in context common errors accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • UnderstandExplain working with estimation in context common errors

    Explain working with estimation in context common errors accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • ApplyCalculate working with estimation in context common errors

    Calculate working with estimation in context common errors accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • AnalyseCompare working with estimation in context common errors

    Compare working with estimation in context 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 Estimation in Context 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.

Key wordsroundnearestestimateapproximately

12 practice questions

Easy to hard, 24 marks in total. Try them first, then open the answers.

  1. 1.Round 187 to the nearest 10.[1]
  2. 2.Round 648 to the nearest 10.[1]
  3. 3.Round 397 to the nearest 10.[1]
  4. 4.Round 270 to the nearest 10.[1]
  5. 5.Round 2,708 to the nearest 100.[2]
  6. 6.Round 9,761 to the nearest 10.[2]
  7. 7.Round 3,139 to the nearest 10.[2]
  8. 8.Round 2,958 to the nearest 10.[2]
  9. 9.Round 90,635 to the nearest 100.[3]
  10. 10.Round 54,724 to the nearest 100.[3]
  11. 11.Round 6,133 to the nearest 100.[3]
  12. 12.Round 27,411 to the nearest 1,000.[3]
Show answers and working
  1. 1. 190

    Find the two multiples of 10 either side: 180 and 190. Look at the digit to the right of the rounding place: 5 or more rounds up. 187 rounds to 190.

  2. 2. 650

    Find the two multiples of 10 either side: 640 and 650. Look at the digit to the right of the rounding place: 5 or more rounds up. 648 rounds to 650.

  3. 3. 400

    Find the two multiples of 10 either side: 390 and 400. Look at the digit to the right of the rounding place: 5 or more rounds up. 397 rounds to 400.

  4. 4. 270

    Find the two multiples of 10 either side: 270 and 270. Look at the digit to the right of the rounding place: 5 or more rounds up. 270 rounds to 270.

  5. 5. 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. 2708 rounds to 2700.

  6. 6. 9,760

    Find the two multiples of 10 either side: 9760 and 9770. Look at the digit to the right of the rounding place: 5 or more rounds up. 9761 rounds to 9760.

  7. 7. 3,140

    Find the two multiples of 10 either side: 3130 and 3140. Look at the digit to the right of the rounding place: 5 or more rounds up. 3139 rounds to 3140.

  8. 8. 2,960

    Find the two multiples of 10 either side: 2950 and 2960. Look at the digit to the right of the rounding place: 5 or more rounds up. 2958 rounds to 2960.

  9. 9. 90,600

    Find the two multiples of 100 either side: 90600 and 90700. Look at the digit to the right of the rounding place: 5 or more rounds up. 90635 rounds to 90600.

  10. 10. 54,700

    Find the two multiples of 100 either side: 54700 and 54800. Look at the digit to the right of the rounding place: 5 or more rounds up. 54724 rounds to 54700.

  11. 11. 6,100

    Find the two multiples of 100 either side: 6100 and 6200. Look at the digit to the right of the rounding place: 5 or more rounds up. 6133 rounds to 6100.

  12. 12. 27,000

    Find the two multiples of 1000 either side: 27000 and 28000. Look at the digit to the right of the rounding place: 5 or more rounds up. 27411 rounds to 27000.

Worked examples

Easy example

Round 327 to the nearest 10.

  1. Find the two multiples of 10 either side: 320 and 330.
  2. Look at the digit to the right of the rounding place: 5 or more rounds up.
  3. 327 rounds to 330.
  4. Answer: 330
Medium example

Round 2,714 to the nearest 100.

  1. Find the two multiples of 100 either side: 2700 and 2800.
  2. Look at the digit to the right of the rounding place: 5 or more rounds up.
  3. 2714 rounds to 2700.
  4. Answer: 2,700
Hard example

Round 13,367 to the nearest 100.

  1. Find the two multiples of 100 either side: 13300 and 13400.
  2. Look at the digit to the right of the rounding place: 5 or more rounds up.
  3. 13367 rounds to 13400.
  4. Answer: 13,400

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.

CAMBRIDGE CAM-168.1 — Mapped statement covering Working with Estimation in Context Common Errors.NATIONAL-CURRICULUM NAT-220.2 — Mapped statement covering Working with Estimation in Context Common Errors.

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Is this Grade 3 Working with Estimation in Context Common Errors flashcards really free?
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What should a learner already know before this?
Start with Rules and Methods in Estimation in Context Common Errors, Key Vocabulary of Estimation in Context Common Errors, Estimation in Context Word Problems. Each one has its own free lesson, worksheet and quiz.
How is the flashcards 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 in Context Common Errors?
Move on to Estimation in Context Common Errors in Examinations, Estimation in Context Essentials, Estimation in Context Techniques, Estimation in Context Word Problems, which build directly on this idea.

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