Starter: Percentage of amounts Starter: Percentage of amounts Use a calculator to work out: a) 77% of 82 = b) 18% of 41 = c) 0.36 x 45 = d) 8% of 34 = e) 0.52 x 19 = f) 0.23 x 40 = g) 1.5% of 62 h) 0.175 of 62 Which percentage of 62 are we working out in the last question? Starter: Percentage of amounts Use a calculator to work out: a) 77% of 82 = b) 18% of 41 = c) 0.36 x 45 = d) 8% of 34 = e) 0.52 x 19 = f) 0.23 x 40 = g) 1.5% of 62 h) 0.175 of 62 Which percentage of 62 are we working out in the last question?

Percentage Increase and Decrease Monday, 13 May 2019 Percentage Increase and Decrease Calculate a percentage increase Calculate a percentage decrease

Percentage increase and decrease With a calculator this skill relies on use of multipliers Increase 340 by 14.5% Decrease 275 by 12.5% Thinking ahead: Instagram went from 200 million users to 400 million users, is this an increase of 200%?

Try One: Percentage increase and decrease With a calculator this skill relies on use of multipliers Increase 340 by 3% Decrease 275 by 17% Thinking ahead: Instagram went from 200 million users to 400 million users, is this an increase of 200%?

Convince me that the multiplier for a 150% increase is 2.5,not 1.5. And Finally… Convince me that the multiplier for a 150% increase is 2.5,not 1.5. Jenny thinks that increasing an amount by 200% is the same as multiplying by 3. Do you agree with Jenny? Explain your answer. Adeel thinks that we decrease an amount by 40% by multiplying by 0.4. Is he correct?

What is this infographic showing us? Why are there different numbers for each social media site? Are there 400 hours of video uploaded to youtube each year? Higher Order Thinking: Who uses this information? Note: 2.46million = 2,460,000 (6 places between the 2 and the decimal)

What is this infographic showing us? Which App store is more popular? Apple or Android? How many Twitter accounts would be created in 10 seconds? How would we work out how often a new post is made on Facebook?

Social Media Standard Form Monday, 13 May 2019 Social Media Standard Form Convert from standard form to small ordinary numbers Represent small ordinary numbers in standard form

Write the answers to the following questions in standard form The increase in the The number of Facebook posts in 2014 The number of Instagram photos uploaded in 2014 The number of Tweets made in 2015 The number of google searches made in 2014 Write the answers to the following questions in standard form The number of hours of video is uploaded to Youtube every seconds in 2015. The number of Facebook posts every 60 seconds in 2014 The number of Instagram photos uploaded every 60 seconds in 2014 The number of Tweets made every 60 seconds in 2015 The number of google searches made every 60 seconds in 2014