Free Grade 3 Estimation in Context Common Errors Flashcards
Free Grade 3 flashcards for 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.
Free
Foundation
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain estimation in context common errors
Explain estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate estimation in context common errors
Calculate estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare estimation in context common errors
Compare estimation in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify estimation in context common errors
Justify 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 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.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Round 749 to the nearest 10.[1]
- 2.Round 694 to the nearest 10.[1]
- 3.Round 856 to the nearest 10.[1]
- 4.Round 557 to the nearest 10.[1]
- 5.Round 6,392 to the nearest 10.[2]
- 6.Round 2,106 to the nearest 10.[2]
- 7.Round 2,479 to the nearest 100.[2]
- 8.Round 3,862 to the nearest 100.[2]
- 9.Round 53,663 to the nearest 1,000.[3]
- 10.Round 82,740 to the nearest 100.[3]
- 11.Round 67,248 to the nearest 100.[3]
- 12.Round 8,101 to the nearest 100.[3]
Show answers and working
1. 750
Find the two multiples of 10 either side: 740 and 750. Look at the digit to the right of the rounding place: 5 or more rounds up. 749 rounds to 750.
2. 690
Find the two multiples of 10 either side: 690 and 700. Look at the digit to the right of the rounding place: 5 or more rounds up. 694 rounds to 690.
3. 860
Find the two multiples of 10 either side: 850 and 860. Look at the digit to the right of the rounding place: 5 or more rounds up. 856 rounds to 860.
4. 560
Find the two multiples of 10 either side: 550 and 560. Look at the digit to the right of the rounding place: 5 or more rounds up. 557 rounds to 560.
5. 6,390
Find the two multiples of 10 either side: 6390 and 6400. Look at the digit to the right of the rounding place: 5 or more rounds up. 6392 rounds to 6390.
6. 2,110
Find the two multiples of 10 either side: 2100 and 2110. Look at the digit to the right of the rounding place: 5 or more rounds up. 2106 rounds to 2110.
7. 2,500
Find the two multiples of 100 either side: 2400 and 2500. Look at the digit to the right of the rounding place: 5 or more rounds up. 2479 rounds to 2500.
8. 3,900
Find the two multiples of 100 either side: 3800 and 3900. Look at the digit to the right of the rounding place: 5 or more rounds up. 3862 rounds to 3900.
9. 54,000
Find the two multiples of 1000 either side: 53000 and 54000. Look at the digit to the right of the rounding place: 5 or more rounds up. 53663 rounds to 54000.
10. 82,700
Find the two multiples of 100 either side: 82700 and 82800. Look at the digit to the right of the rounding place: 5 or more rounds up. 82740 rounds to 82700.
11. 67,200
Find the two multiples of 100 either side: 67200 and 67300. Look at the digit to the right of the rounding place: 5 or more rounds up. 67248 rounds to 67200.
12. 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. 8101 rounds to 8100.
Worked examples
Round 426 to the nearest 10.
- 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.
- 426 rounds to 430.
- Answer: 430
Round 1,106 to the nearest 100.
- Find the two multiples of 100 either side: 1100 and 1200.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 1106 rounds to 1100.
- Answer: 1,100
Round 92,480 to the nearest 1,000.
- Find the two multiples of 1000 either side: 92000 and 93000.
- Look at the digit to the right of the rounding place: 5 or more rounds up.
- 92480 rounds to 92000.
- Answer: 92,000
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 Common Errors
One concept, one ecosystem — all of it free.
Goes deeper
The entities below this one, each with the same complete free resource set.
Sibling concepts
Related concepts
Lateral links, including across subjects.
Next topics
All free formats for this concept
Every kind below is a real page, generated from this entity.
Learn — Meet the idea.
Practice — Build fluency.
Revise — Keep it in memory.
Assess — Prove mastery.
Apply — Use it in context.
Teach — Deliver it to a class.
Frequently asked
- Is this Grade 3 Estimation in Context Common Errors 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 Estimation in Context Word Problems, Estimation in Context Techniques, Working with Estimation. 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 Common Errors?
- Move on to Introducing Estimation, Working with Estimation, which build directly on this idea.
Related resources
Stuck on Estimation in Context Common Errors? The AI Tutor already knows this page, its prerequisites and its common mistakes.
Open the free AI Tutor