Free Grade 3 Counterexamples in Context Common Errors Flashcards
Free Grade 3 flashcards for Counterexamples in Context Common Errors: 12 real questions with a full answer key and worked solutions. Counting on means saying the next numbers in order, adding the same amount each time. Counting in 2s, 5s and 10s is the first step towards times tables.
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Stretch
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify counterexamples in context common errors
Identify counterexamples in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain counterexamples in context common errors
Explain counterexamples in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate counterexamples in context common errors
Calculate counterexamples in context common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare counterexamples in context common errors
Compare counterexamples 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 Counterexamples in Context Common Errors works
Counting on means saying the next numbers in order, adding the same amount each time. Counting in 2s, 5s and 10s is the first step towards times tables.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Count on in 2s: 18, 20, 22, 24, __, __[1]
- 2.Count on in 1s: 8, 9, 10, 11, __, __[1]
- 3.Count on in 2s: 12, 14, 16, 18, __, __[1]
- 4.Count on in 1s: 0, 1, 2, 3, __, __[1]
- 5.Count on in 2s: 30, 32, 34, 36, __, __[2]
- 6.Count on in 2s: 42, 44, 46, 48, __, __[2]
- 7.Count on in 2s: 32, 34, 36, 38, __, __[2]
- 8.Count on in 5s: 110, 115, 120, 125, __, __[2]
- 9.Count on in 5s: 150, 155, 160, 165, __, __[3]
- 10.Count on in 10s: 160, 170, 180, 190, __, __[3]
- 11.Count on in 10s: 140, 150, 160, 170, __, __[3]
- 12.Count on in 5s: 60, 65, 70, 75, __, __[3]
Show answers and working
1. 26, 28
Each number is 2 more than the one before. 24 + 2 = 26 26 + 2 = 28
2. 12, 13
Each number is 1 more than the one before. 11 + 1 = 12 12 + 1 = 13
3. 20, 22
Each number is 2 more than the one before. 18 + 2 = 20 20 + 2 = 22
4. 4, 5
Each number is 1 more than the one before. 3 + 1 = 4 4 + 1 = 5
5. 38, 40
Each number is 2 more than the one before. 36 + 2 = 38 38 + 2 = 40
6. 50, 52
Each number is 2 more than the one before. 48 + 2 = 50 50 + 2 = 52
7. 40, 42
Each number is 2 more than the one before. 38 + 2 = 40 40 + 2 = 42
8. 130, 135
Each number is 5 more than the one before. 125 + 5 = 130 130 + 5 = 135
9. 170, 175
Each number is 5 more than the one before. 165 + 5 = 170 170 + 5 = 175
10. 200, 210
Each number is 10 more than the one before. 190 + 10 = 200 200 + 10 = 210
11. 180, 190
Each number is 10 more than the one before. 170 + 10 = 180 180 + 10 = 190
12. 80, 85
Each number is 5 more than the one before. 75 + 5 = 80 80 + 5 = 85
Worked examples
Count on in 2s: 4, 6, 8, 10, __, __
- Each number is 2 more than the one before.
- 10 + 2 = 12
- 12 + 2 = 14
- Answer: 12, 14
Count on in 5s: 75, 80, 85, 90, __, __
- Each number is 5 more than the one before.
- 90 + 5 = 95
- 95 + 5 = 100
- Answer: 95, 100
Count on in 10s: 310, 320, 330, 340, __, __
- Each number is 10 more than the one before.
- 340 + 10 = 350
- 350 + 10 = 360
- Answer: 350, 360
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Says the starting number as the first count when counting on.
Correction: Point to the start number, then say the NEXT number as 'one'.
Loses the pattern when crossing a ten (e.g. 28, 29, 20).
Correction: Use a 100 square so the child sees the row change.
Teacher tips
- · Use a 100 square and colour each skip-count pattern in a different colour.
Parent tips
- · Count stairs in 2s or cars in 5s on a walk.
Real-life applications
- · Counting coins in 5s and 10s, counting pairs of socks in 2s.
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Frequently asked
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- 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 Counterexamples in Context Word Problems, Counterexamples in Context Techniques, Working with Counterexamples. 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 Counterexamples in Context Common Errors?
- Move on to Introducing Counterexamples, Working with Counterexamples, which build directly on this idea.
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