Free Grade 3 Working with Estimation Flashcards
Free Grade 3 flashcards for Working with Estimation: 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
Stretch
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with estimation
Identify working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with estimation
Explain working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with estimation
Calculate working with estimation accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with estimation
Compare working with estimation 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 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 184 to the nearest 10.[1]
- 2.Round 753 to the nearest 10.[1]
- 3.Round 592 to the nearest 10.[1]
- 4.Round 869 to the nearest 10.[1]
- 5.Round 2,717 to the nearest 100.[2]
- 6.Round 3,793 to the nearest 100.[2]
- 7.Round 3,366 to the nearest 10.[2]
- 8.Round 8,247 to the nearest 10.[2]
- 9.Round 27,800 to the nearest 100.[3]
- 10.Round 52,389 to the nearest 1,000.[3]
- 11.Round 26,073 to the nearest 100.[3]
- 12.Round 21,346 to the nearest 100.[3]
Show answers and working
1. 180
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. 184 rounds to 180.
2. 750
Find the two multiples of 10 either side: 750 and 760. Look at the digit to the right of the rounding place: 5 or more rounds up. 753 rounds to 750.
3. 590
Find the two multiples of 10 either side: 590 and 600. Look at the digit to the right of the rounding place: 5 or more rounds up. 592 rounds to 590.
4. 870
Find the two multiples of 10 either side: 860 and 870. Look at the digit to the right of the rounding place: 5 or more rounds up. 869 rounds to 870.
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. 2717 rounds to 2700.
6. 3,800
Find the two multiples of 100 either side: 3700 and 3800. Look at the digit to the right of the rounding place: 5 or more rounds up. 3793 rounds to 3800.
7. 3,370
Find the two multiples of 10 either side: 3360 and 3370. Look at the digit to the right of the rounding place: 5 or more rounds up. 3366 rounds to 3370.
8. 8,250
Find the two multiples of 10 either side: 8240 and 8250. Look at the digit to the right of the rounding place: 5 or more rounds up. 8247 rounds to 8250.
9. 27,800
Find the two multiples of 100 either side: 27800 and 27800. Look at the digit to the right of the rounding place: 5 or more rounds up. 27800 rounds to 27800.
10. 52,000
Find the two multiples of 1000 either side: 52000 and 53000. Look at the digit to the right of the rounding place: 5 or more rounds up. 52389 rounds to 52000.
11. 26,100
Find the two multiples of 100 either side: 26000 and 26100. Look at the digit to the right of the rounding place: 5 or more rounds up. 26073 rounds to 26100.
12. 21,300
Find the two multiples of 100 either side: 21300 and 21400. Look at the digit to the right of the rounding place: 5 or more rounds up. 21346 rounds to 21300.
Worked examples
Round 781 to the nearest 10.
- Find the two multiples of 10 either side: 780 and 790.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 781 rounds to 780.
- Answer: 780
Round 2,891 to the nearest 10.
- Find the two multiples of 10 either side: 2890 and 2900.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 2891 rounds to 2890.
- Answer: 2,890
Round 37,965 to the nearest 100.
- Find the two multiples of 100 either side: 37900 and 38000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 37965 rounds to 38000.
- Answer: 38,000
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.
Every free resource for Working with Estimation
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Frequently asked
- Is this Grade 3 Working with Estimation flashcards really free?
- Yes. Every flashcards 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 Introducing Estimation, Rounding. 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?
- Move on to Estimation in Context, Reading Whole Numbers, Place Value, Digits, which build directly on this idea.
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