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Power of <strong>Maths</strong>: 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 = % 8
Number 1 (e) 1 __ 3 of 1 __ 6 = % (f) 1__ of 0·8 = % 5 (g) 0·8 of 1__ 5 = % (h) 2__ 3 of 5__ 6 = % (i) 0·2 of 0·3 = % (j) 12·5 of 120 = % 4. Write the fraction that the shaded area is of the whole area as a rational number, as a decimal and as a percentage. (a) Circle ________ Rational 120° Decimal Percentage % (b) Square ________ Rational Decimal Percentage % (c) Regular hexagon ________ Rational Decimal Percentage % (d) Rhombus ________ Rational (e) Circles 6 cm Decimal Percentage % ________ Rational 4 cm Decimal Percentage % 9
Page 1 and 2: LEAVING CERTIFICATE MATHS HIGHER LE
Page 3 and 4: 1 Number SECTION Activity 1: Identi
Page 5 and 6: Number 1 Activity 3: Working with p
Page 7 and 8: Number 1 2. State which real number
Page 9: Number 1 __ Constructing a line of
Page 13 and 14: Number 1 3. Write the following num
Page 15 and 16: Number 1 Activity 11: Understanding
Page 17 and 18: Number 1 3. Round off the following
Page 19 and 20: Number 1 (c) R (d) H Slope = 4·8 S
Page 21 and 22: Number 1 (a) What can you say about
Page 23 and 24: Number 1 Activity 8 1. (a) 50% ( b)
Page 25 and 26: Activities in Power of Maths Paper
Page 27 and 28: Activities Activity 6 ACTION OBJECT
Page 29 and 30: Activities Activity 31 ACTION OBJEC
Page 31 and 32: Activities Chapter 9: Inequalities
Page 33 and 34: Activities Section 5: Financial Mat
Page 35 and 36: Activities Activity 16 ACTION Explo
Page 37 and 38: Activities Chapter 20: Quadratic Fu
Page 39 and 40: Activities Chapter 24: Applications

Maths

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