Free Grade 3 Estimation in Context Flashcards
Free Grade 3 flashcards for Estimation in Context: 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
Higher
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain estimation in context
Explain estimation in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate estimation in context
Calculate estimation in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare estimation in context
Compare estimation in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify estimation in context
Justify estimation in context 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 Estimation in Context 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 998 to the nearest 10.[1]
- 2.Round 500 to the nearest 10.[1]
- 3.Round 267 to the nearest 10.[1]
- 4.Round 950 to the nearest 10.[1]
- 5.Round 3,043 to the nearest 10.[2]
- 6.Round 5,537 to the nearest 100.[2]
- 7.Round 3,954 to the nearest 10.[2]
- 8.Round 433 to the nearest 100.[2]
- 9.Round 6,443 to the nearest 1,000.[3]
- 10.Round 96,349 to the nearest 1,000.[3]
- 11.Round 54,608 to the nearest 1,000.[3]
- 12.Round 76,146 to the nearest 100.[3]
Show answers and working
1. 1,000
Find the two multiples of 10 either side: 990 and 1000. Look at the digit to the right of the rounding place: 5 or more rounds up. 998 rounds to 1000.
2. 500
Find the two multiples of 10 either side: 500 and 500. Look at the digit to the right of the rounding place: 5 or more rounds up. 500 rounds to 500.
3. 270
Find the two multiples of 10 either side: 260 and 270. Look at the digit to the right of the rounding place: 5 or more rounds up. 267 rounds to 270.
4. 950
Find the two multiples of 10 either side: 950 and 950. Look at the digit to the right of the rounding place: 5 or more rounds up. 950 rounds to 950.
5. 3,040
Find the two multiples of 10 either side: 3040 and 3050. Look at the digit to the right of the rounding place: 5 or more rounds up. 3043 rounds to 3040.
6. 5,500
Find the two multiples of 100 either side: 5500 and 5600. Look at the digit to the right of the rounding place: 5 or more rounds up. 5537 rounds to 5500.
7. 3,950
Find the two multiples of 10 either side: 3950 and 3960. Look at the digit to the right of the rounding place: 5 or more rounds up. 3954 rounds to 3950.
8. 400
Find the two multiples of 100 either side: 400 and 500. Look at the digit to the right of the rounding place: 5 or more rounds up. 433 rounds to 400.
9. 6,000
Find the two multiples of 1000 either side: 6000 and 7000. Look at the digit to the right of the rounding place: 5 or more rounds up. 6443 rounds to 6000.
10. 96,000
Find the two multiples of 1000 either side: 96000 and 97000. Look at the digit to the right of the rounding place: 5 or more rounds up. 96349 rounds to 96000.
11. 55,000
Find the two multiples of 1000 either side: 54000 and 55000. Look at the digit to the right of the rounding place: 5 or more rounds up. 54608 rounds to 55000.
12. 76,100
Find the two multiples of 100 either side: 76100 and 76200. Look at the digit to the right of the rounding place: 5 or more rounds up. 76146 rounds to 76100.
Worked examples
Round 987 to the nearest 10.
- Find the two multiples of 10 either side: 980 and 990.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 987 rounds to 990.
- Answer: 990
Round 9,700 to the nearest 100.
- Find the two multiples of 100 either side: 9700 and 9700.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 9700 rounds to 9700.
- Answer: 9,700
Round 13,452 to the nearest 1,000.
- Find the two multiples of 1000 either side: 13000 and 14000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 13452 rounds to 13000.
- Answer: 13,000
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 Estimation in Context
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Frequently asked
- Is this Grade 3 Estimation in Context 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 Working with Estimation, 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 Estimation in Context?
- Move on to Reading Whole Numbers, Place Value, Digits, Comparing Numbers, which build directly on this idea.
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