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Fractions and Decimals Chapter 3 Section 1

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Rational Numbers Terminating Decimal – a decimal that ends. Repeating Decimal – a decimal that has a digit or group of digits that repeats without end. Counting Numbers : 1, 2, 3, 4, 5, 6 … Whole Numbers : 0, 1, 2, 3, 4, 5, 6 … Integers : … -3, -2, -1, 0, 1, 2, 3, …

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Vocabulary Whole #’s Integers Rational Numbers

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Review: Write Fractions as Decimals Our decimal system is based on powers of 10 such as 10, 100, and 1,000. If the denominator of a fraction is a power of 10, you can use place value to write the fraction as a decimal Complete the table below: WordsFractionDecimal Seven tenths7/100.7 Nineteen hundredths One-hundred five thousandths

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Examples: Write each fraction or mixed number as a decimal: 1. 3/10 2. 3/25 3. -6 and ½

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Compare Fractions and Decimals It may be easier to compare numbers when they are written as decimals Example: Replace each blank with, or = to make a true sentence A. ¼ 0.2

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Guided Practice pg. 125 4A. 7/8 0.87 4B. -7/15 -5/12

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