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Formatting answers for SQA National 5 Maths

Formatting answers

This page covers the following topics:

1. Rounding

When rounding to the nearest 10, 100 etc or to a specific number of decimal places/significant figures, if the digit after the cutโˆ’off point is 5 or above, round up โˆ’ if itโ€™s under 5, round down.

Rounding

1

Round 2.578 to two decimal places.

8 is the number after two decimal places and is above 5 so round up.

2.58

Round 2.578 to two decimal places.

2

Round 0.005708 to three significant figures.

The first non zero number i.e. significant figure is 5. 8 is the number after three significant figures and is above 5 so round up.

0.00571

Round 0.005708 to three significant figures.

3

Round 12,563 to two significant figures.

5 is the number after two significant figures and is 5 or above so round up.

13,000

Round 12,563 to two significant figures.

4

Round 6.453 to two decimal places.

3 is the number after two decimal places and is below 5 so round down.

6.45

Round 6.453 to two decimal places.

5

An classroom seats 32 pupils. On a given day only 13 pupils are present, calculate the part of seats that are filled as a percentage. Give your answer to the nearest whole number.

(13/32) ร— 100% = 40.625%
The answer to the nearest whole number is 41%.

41%

An classroom seats 32 pupils. On a given day only 13 pupils are present, calculate the part of seats that are filled as a percentage. Give your answer to the nearest whole number.

End of page

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