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One Number as a Percentage of Another
DO NOW: Complete the table Fraction Decimal Percentage 0.25 60% 0.85 ⅓ 100% 0.24 ⅞ 150% 0.07
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One Number as a Percentage of Another
DO NOW: Complete the table Fraction Decimal Percentage 1/4 0.25 25% 0.75 75% 6/10 or 3/5 0.6 60% 85/100 or 17/20 0.85 85% ⅓ 0.333…… 33⅓ 1/1 1.0 100% 24/100 or 6/25 0.24 24% ⅞ 87.5 87.5% 3/2 1.5 150% 7/100 0.07 7%
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Recapping: Equivalences between fractions, decimals and percentages.
Match the equivalent values. ANS 40% − 1 4 27% 0.85 −58% 16 100 3 5 −0.35 3 20 56% − 0.25
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Factors of 100 Non-calculator method Calculator method Express 5cm as a percentage of 20cm Express 1m as a percentage of 8m.
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km c) 25 seconds of a minute d) 4 days of a week e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? ANS ANS ANS ANS ANS ANS
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm c) 75 p of £ d) 4 days of 2 weeks e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? ANS ANS ANS ANS ANS ANS
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another 3 m of wood is bought to make the picture frame illustrated. Do not use a calculator. What percentage of the wood is used? ANS
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Recapping: Equivalences between fractions, decimals and percentages.
Match the equivalent values. 40% − 1 4 27% 0.85 −58% 16 100 3 5 −0.35 3 20 56% − 0.25 Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% c) 25 seconds of a minute d) 4 days of a week e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% % c) 25 seconds of a minute d) 4 days of a week e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% % c) 25 seconds of a minute d) 4 days of a week 41.67% e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% % c) 25 seconds of a minute d) 4 days of a week 41.67% % e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% % c) 25 seconds of a minute d) 4 days of a week 41.67% % e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? % f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Which girl got the higher percentage? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 120 cm of 2 m b) 525 m of 3 km 60% % c) 25 seconds of a minute d) 4 days of a week 41.67% % e) In a local election there were 5600 registered voters. Of these 3450 voted. What was the percentage that voted? % f) Pauline got 16 out of 25 for an assignment and Rose got 13 out of 20. Pauline 64%, Rose 65% Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% c) 75 p of £1.20 d) 4 days of 2 weeks e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% 20% c) 75 p of £1.20 d) 4 days of 2 weeks e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% 20% c) 75 p of £1.20 d) 4 days of 2 weeks 62.5% e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% 20% c) 75 p of £1.20 d) 4 days of 2 weeks 62.5% % e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% 20% c) 75 p of £1.20 d) 4 days of 2 weeks 62.5% % e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? 2.6% f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another Express the first amount as a percentage of the second. a) 140 g of 1 kg b) 2 mm of 1 cm 14% 20% c) 75 p of £1.20 d) 4 days of 2 weeks 62.5% % e) Dominic puts £350 into a savings account. After one year he receives £9.20 in interest. What was the rate of interest paid on his savings? 2.6% f) When Tabatha started to diet she weighed 52 kg. She now weighs 49.5 kg. 95.2% What percentage of her original weight does she now weigh? Go Back
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One Number as a Percentage of Another
Learning Objective: Define percentage as ‘number of parts per hundred and express one quantity as a percentage of another 3 m of wood is bought to make the picture frame illustrated. Do not use a calculator. What percentage of the wood is used? 90% Go Back
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