Rounding numbers (Edexcel GCSE Maths): Quizzes

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Rounding numbers
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12 questions from this quiz

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What is the Golden Rule for rounding? If the digit is...

5 or more, round up; less than 5, round down

When rounding, which digit do you look at to make your decision?

The digit to the right of target place

Round 5.0435.043 to 1 decimal place.

5.05.0

Round 5.0435.043 to the nearest whole number.

55

When counting significant figures, where do you start counting from?

The first non-zero digit on the left

Are leading zeros (at the start) counted as significant figures?

No, they are not significant

Round 27.0527.05 to 1 significant figure.

3030

Round 0.00850.0085 to 1 significant figure.

0.0090.009

Why must you write 5.05.0 instead of 55 when rounding to 1 d.p.?

To show precision & you've rounded to 1 d.p.

In significant figures, are zeros between non-zero digits significant?

Yes, they are significant

What is a common mistake when rounding 3.7823.782 to 1 d.p.?

Rounding multiple times: 3.78 then 3.8

Round 27.0527.05 to 3 significant figures.

27.127.1

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