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This practice session covers calculations related to circumference, diameter, and area of circles, as well as converting percentages to fractions and decimals.
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Starter Questions 21/02/11 1. Calculate the circumference 15cm 2. Calculate the diameter of the circle if the circumference is 15.7m 3. Calculate the area of the circle 40mm
21/02/11 Percentages Learning Intention • 1. Convert percentages to fractions and decimals. • 2. Change fraction to percentages. • 3. Find percentage values.
3 7 21/02/11 Percentages Put over 100 Put over 100
80% = 21/02/11 What simple % is missing Percentages Example : Find 20% of £450
= 0 1 0 5 0 3 0 0 150 x 21/02/11 How to find % of a quantity using a calculator example Find Step 1 : Convert % to a decimal of means x Step 2 : Step 3 : Do sum Calculator Keys
21/02/11 Percentages Learning Intention • 1. Convert percentages to fractions and decimals. • 2. Change fraction to percentages. • 3. Find percentage values.