75.25–5.45 = 75.25 -3.21 78.46 Decimal point Rounding to one decimal place less than 5 (1,2,3,4) round down 7.35 = 7.4 5 or above (5,6,7,8,9) round up Percentage Percentage means ‘out of 100’ Fraction Decimal Percentage Diagram Fraction Decimal Percentage 1/4 0.25 25% 2 2÷20 0.1 0.1 x 100 10% 1/2 0.50 50% 20 0f means x 3/4 0.75 75% 15% of £50 is 15x50 = £7.50 4/4 = 1 1 100% 100 Measurements Length Weight Time Comparison more than / greater than less than heavier than lighter than 10mm = 1cm 1000mg = 1g 60s = 1 min higher than 100cm = 1m 1000g = 1kg* 24h = 1 day lower than
Decimal point 75.25–5.45 = 75.25 -3.21 78.46 Rounding to one decimal place less than 5 (1,2,3,4) round down 7.35 = 7.4 5 or above (5,6,7,8,9) round up Percentage Percentage means ‘out of 100’ Fraction Decimal Percentage 2 2÷20 0.1 0.1 x 100 10% 20 Diagram Fraction Decimal Percentage 1/4 0.25 25% 1/2 0.50 50% 0f means x 15% of £50 is 15x50 = £7.50 100 3/4 0.75 75% 4/4 = 1 1 100% Measurements Length 10mm = 1cm 100cm = 1m Weight 1000mg = 1g 1000g = 1kg* Time 60s = 1 min 24h = 1 day Comparison more than / greater than less than heavier than lighter than higher than lower than