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Topic: Decimals (Foundation - Unit 2)

Specification References: N1.4 N1.4 Approximate to a given power of 10, up to three decimal places and one significant figure.

Candidates should be able to:

• perform money calculations, writing answers using the correct notation
• round numbers to the nearest whole number, 10, 100 or 1000
• round to one, two or three decimal places
• round to one significant figure

Notes

This is part of the core number work required across all units.
The core number work will be assessed so that it is linked to other specification references within this unit.

Candidates should know that some answers need to be rounded up and some need to be rounded down.

Candidates should know that when using approximations for estimating answers, numbers should be rounded to one significant figure before the estimating is done.

Examples

1. Ian takes three parcels to the post office. They cost £1.94, £1.71 and £2.05 to send.
   He pays with a £10 note. How much change should he receive?

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