Maths

Power of Maths: Paper 1 – Section 1
2. If | number | stands for the distance of the number to 0, complete the following:
(a) | 4 | =
(b) | −3 | =
(c) | − √
__
2 | =
(d) | −0·5 | =
(e) | −2·8 | =
(f) | 1__ 3 | =
(g) | − 2__ 5 | =
__
(h) | −3 √ 2 | =
Activity 8: Working with fractions,
decimals and percentages
OBJECTIVE: To work with fractions, decimals and percentages and, when presented with various shapes,
to write down the shaded area as a fraction, decimal and percentage
1. Write the following as percentages:
(a) 0·5 = %
(b) 0·25 = %
(c) 0·6 = %
(d) 0·48 = %
(e) 1·6 = %
(f) 7·65 = %
(g) 0·23 = %
(h) 2 = %
(i) 0·7 = %
(j) 0·18 = %
2. Write the following as decimals and then as fractions in their lowest form:
(a) 20% =
= _____
__
(e) 66 2
3 % = = _____
(b) 32% =
= _____
(f) 4% =
= _____
(c) 67% =
= _____
(g) 2·3% =
= _____
(d) 18% =
= _____
(h) 11% =
= _____
3. Calculate what percentage is:
(a) 5 of 20 = %
(b) 15 of 45 = %
(c) 10·2 of 27·2 = %
(d) 520 of 400 = %
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