Rounding & Estimation Quiz

What is 25 rounded to the nearest 10?

What is 460 rounded to the nearest 100?

What is 8,460 rounded to the nearest 1000?

What is 3.6 rounded to the nearest whole number?

What is 27.59 rounded to one decimal place?

What is 2.2 x 3.7? Give your answer as the nearest whole number.

Deisel cost £1.49 a litre at the Motorway service station. What calculation would you do to ESTIMATE the cost of 20.5 litres?

• 1.49 x 20.5
• 1.5 x 20

Your journey to work is 5.2 miles. You travel there and back Monday - Friday. What calculation would you do to estimate the total mileage for the week?

• 5 x 5
• 10 x 5
• 5 x 5.2
• 10 x 5.2

A Greggs bacon & sausage breakfast roll is £1.85. Which calculation could you use to estimate the cost for you and four friends.

• £2 x 4
• £2 x 5
• £1.85 x 4
• £1.85 x 5

If you round £1.85 to £2, will your estimated answer be more or less that the actual cost?

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