Presentation on theme: "Fractions, decimals and percentages"— Presentation transcript:
1Fractions, decimals and percentages Level 4/5 BoosterLesson 2BFractions, decimals and percentages
2multiple recurring decimal Equivalent Objectives: Use the equivalence of fractions, decimals and percentages to compare proportions.Calculate percentages and fractions of an amount.Vocabulary:multiplerecurring decimalEquivalent
3T2.1BFind equivalent fractions.10%30%75%0.10.7550%0.325%0.251/103/43/101%1/40.51/2Write down any other sets of equivalent fractions.
4T2.2BGive 50% of each number:23610407015902850700201006481408
5Give one-half of each of these numbers: T2.2B23610407015902850700201006481408
6T2.2BFind 25% of each of the following numbers:23610407015902850700201006481408
7T2.2BFind ¾ of each of the following numbers.23610407015902850700201006481408
8How many times does 10% fit into 100%? There are 10 lots of 10% in 100%.What fraction is 10% the same as?10% is the same asHow can you find 10% of a number?To find 10% we need to divide by 10.Explain how to find 10% of 450.450 divided by 10 is 45 – move each digit one column to the right.
9T2.3BFind 10% of each of the following amounts:2012015010027020055060022090050403007012007000
10If I can find 10% what other percentages can I find? To find 20% we can do 2 x 10%To find 30% we can do…………To find 40% we can do …………….How would you find 50%?Which is the easiest way to find 50%?
11W/S 2.1BFind 10% and then use it to find other percentage amounts.50% is10% is46020% is30% isOn a copy of this spider diagram fill in the answers to those percentages stated and find some other percentages of your own choice.
12Percentage Spider Diagram W/S2.1BOn a copy of this diagram start with a number of your own choice and complete a percentage spider diagram.
13multiple recurring decimal Equivalent Objectives: Use the equivalence of fractions, decimals and percentages to compare proportions.Calculate percentages and fractions of an amount.Vocabulary:multiplerecurring decimalEquivalent