Rounding and Estimation
Math ⇒ Number and Operations
Rounding and Estimation starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Rounding and Estimation.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
A box weighs 4.68 kg. Round this weight to the nearest kilogram.
A recipe calls for 2.87 liters of water. Round this amount to the nearest liter.
A store has 1,247 items in stock. Estimate the number of items to the nearest hundred.
A train travels 1,234 kilometers. Round this distance to the nearest hundred kilometers.
Describe a real-life situation where estimation is more useful than an exact answer.
Estimate the difference between 7,892 and 3,104 by rounding each number to the nearest thousand before subtracting.
Estimate the product of 198 and 52 by rounding each number to the nearest ten before multiplying.
Estimate the quotient of 1,234 divided by 29 by rounding both numbers to the nearest ten before dividing.
Estimate the sum of 3,498 and 2,601 by rounding each number to the nearest thousand before adding.
Explain the difference between rounding up and rounding down.
Explain why estimation is useful when checking the reasonableness of an answer.
If a number is exactly halfway between two rounding options, what is the general rule for rounding?
Round 0.6789 to the nearest hundredth.
Round 0.845 to the nearest hundredth.
Round 13,499 to the nearest thousand.
Round 4,567 to the nearest hundred.
Round 7,650 to the nearest thousand.
What is the purpose of estimation in mathematics?
