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MFM 2P Review – Core Skills Learning Goals: I can round whole numbers and integers I can convert from a percent to a decimal I can convert a number into a percent I can add, subtract, multiply and divide fractions

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MFM 2P Review – Core Skills Rounding Look at the number to the right of the number you need to round. If the number to the right is 0-4, keep the number you need to round the same. If the number to the right is 5-9, add 1 to the number you are rounding.

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MFM 2P Review – Core Skills Know your places!

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MFM 2P Review – Core Skills Example: Round the following number to the nearest hundred: 1, 568.899

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MFM 2P Review – Core Skills Example: Round the following number to the nearest tenth: 65.1234

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MFM 2P Review – Core Skills What do you do when you need to round up the number 9? For example, round the following number to the nearest one 879.84

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MFM 2P Review – Core Skills Converting a percent to a decimal Divide the percentage by 100. Move the decimal place over two places to the left. Examples: 1)Convert 18% to a decimal 2)Convert 3% to a decimal

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MFM 2P Review – Core Skills Converting a decimal to a percent Multiply the decimal by 100. Move the decimal place over two places to the right. Examples: 1)Convert 0.45 to a percent 2)Convert 1.05 to a percent

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MFM 2P Review – Core Skills Working with Percents Example 1: What is 35% of 862? In math, “of” means multiply. 1)Convert the percent to a decimal 2)Multiply the decimal you just found by the other number

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MFM 2P Review – Core Skills Working with Percents Example 2: What percent did you get on a test if you got 15 questions right out of 23? 1)Divide the number you got by the total number 2)Multiply your answer by 100

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MFM 2P Review – Core Skills Fractions

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MFM 2P Review – Core Skills Types of Fractions: 1. Proper: When the numerator (top number) is less than the denominator (bottom number) 2. Improper: When the numerator (top number) is greater than the denominator (bottom number) 3. Mixed: When a whole number is combined with a fraction

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MFM 2P Review – Core Skills Success Criteria for converting Mixed Fractions to Improper Fractions: Multiply the whole number by the denominator and add the numerator. This gives you the numerator for your improper fraction Keep the denominator the same Negative signs out front of the fraction are not involved in the calculation

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MFM 2P Review – Core Skills

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MFM 2P Review – Core Skills Success Criteria for converting Improper Fractions to Mixed Fractions: Count how many times the denominator will go into the numerator. This gives you your whole number to put in front of the fraction Take the remainder and use it as your numerator Your denominator stays the same Leave negative signs out front

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MFM 2P Review – Core Skills

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MFM 2P Review – Core Skills Success Criteria for Adding and Subtracting Fractions: Convert mixed fractions into improper fractions first Find a common denominator Add the numerators Keep the denominator the same

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MFM 2P Review – Core Skills

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MFM 2P Review – Core Skills Success Criteria for Multiplying Fractions Convert mixed fractions into improper fractions first You DO NOT need a common denominator Whole numbers have an imaginary denominator of 1 Multiply the numerators Multiply the denominators

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MFM 2P Review – Core Skills

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MFM 2P Review – Core Skills Success Criteria for Dividing Fractions Convert mixed fractions into improper fractions first You DO NOT need a common denominator Change the division sign to a multiplication sign Flip the second fraction Multiply the numerators Multiply the denominators

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MFM 2P Review – Core Skills

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