Class 9 Exam > Class 9 Notes > Year 9 Mathematics IGCSE (Cambridge) > Worksheet: Estimation
Worksheet: Estimation | Year 9 Mathematics IGCSE (Cambridge) - Class 9 PDF Download
Q1: The drive from Gimli to Emerson is 200 km. How long will it take to drive this at 100 km/h?
Q2: The drive from Minot to Grand Forks is 210 miles. About how long will it take to get there driving 68 miles per hour?
Q3: Estimate the time each Grade 8 student spends in math class this month.
Q4: What two whole numbers is √30 between?
Q5: Less than, greater than, or equal? 9 _____ √99
Q6: The drive from Melita to Gretna is 300 km. About how long will it take to drive this at 80 km/h?
Q7: How fast do you bike in km/h if it takes you 4 minutes to bike a kilometre?
Q8: Estimate the value of a stack of quarters 1 metre tall. A roll of quarters is 7 cm long and worth $10.
Q9: Less than, greater than, or equal? 8 _____ √80
Q10: Less than, greater than, or equal? 11 _____ √66
Q11: The distance from The Pas to Winnipeg is 628 km. At an average speed of 80 km/h, about how long would this trip take?
Q12: Sales taxes in Manitoba are 8% PST and 5% GST. What is the approximate total cost for a new phone priced at $99?
Q13: Beth is a great waitress. She expects a 15% tip from a man who had a meal worth $12.35. He left her $1.30. Is this reasonable?
Q14: Less than, greater than, or equal? 
Q15: Less than, greater than, or equal? 
Q16: Four classes with 21 students each need to take a field trip to the box factory. Each bus holds 25 students. How many buses are needed?
Q17: You received a terrible haircut. You want to tip 5% or slightly less. The final bill is $20.99. What should you tip?
Q18: Estimate the cost: 10% off a shirt worth $29.97
Q19: Less than, greater than, or equal? 
Q20: Less than, greater than, or equal? 3 _____ √6
You can access the solutions to this worksheet here.
The document Worksheet: Estimation | Year 9 Mathematics IGCSE (Cambridge) - Class 9 is a part of the Class 9 Course Year 9 Mathematics IGCSE (Cambridge).
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FAQs on Worksheet: Estimation - Year 9 Mathematics IGCSE (Cambridge) - Class 9
| 1. What is the importance of estimation in everyday life? |  |
Ans.Estimation is crucial in everyday life as it helps individuals make quick decisions without needing precise calculations. It allows people to manage time, budget finances, and gauge distances or quantities efficiently, aiding in tasks such as cooking, shopping, and planning.
| 2. How can I improve my estimation skills? | |
Ans.To improve estimation skills, practice rounding numbers, use benchmarks for quick reference, and regularly engage in mental math exercises. Additionally, familiarizing yourself with common measurements and practicing estimation in real-life scenarios can enhance your ability.
| 3. What are some common methods for estimating numbers? | |
Ans.Common methods for estimating numbers include rounding to the nearest ten or hundred, using compatible numbers for easier calculations, and making educated guesses based on previous experiences or known quantities.
| 4. In what scenarios is estimation more beneficial than exact calculations? | |
Ans.Estimation is more beneficial in scenarios where time is limited, such as during quick assessments, when making budgetary decisions, or in situations where precision is less critical, like planning a casual gathering or shopping for groceries.
| 5. How does estimation relate to mathematical concepts taught in school? | |
Ans.Estimation relates to various mathematical concepts such as rounding, number sense, and mental math strategies. It is often integrated into lessons to help students develop a better understanding of numbers and enhance their problem-solving skills in practical situations.
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Oct 14, 2025
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Document Description: Worksheet: Estimation for Class 9 2025 is part of Year 9 Mathematics IGCSE (Cambridge) preparation.
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