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Decimals

Chapter 4. Decimals. Introduction to Decimals. 4.1. Decimal Notation and Writing Decimals in Words. Decimal part. Whole number part. Decimal point. p 248. Decimal Notation and Writing Decimals in Words ( page 248).

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Decimals

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  1. Chapter 4 Decimals

  2. Introduction to Decimals 4.1

  3. Decimal Notation and Writing Decimals in Words Decimal part Whole number part Decimal point p 248

  4. Decimal Notation and Writing Decimals in Words (page 248) Like fractional notation, decimal notation is used to denote a part of a whole. Numbers written in decimal notation are called decimal numbers, or simply decimals. Place names and place values for the decimal parts are also shown.

  5. Writing and Reading Decimals in Words p 249

  6. Examples Write the decimals in words. • 3.6 three and six tenths • 124. 52 one hundred twenty-four and fifty- two hundredths p 249

  7. Writing Decimals in Words Practice Problems Write the decimal 8.7 in words. Eight and seven tenths Ninety-seven and twenty-eight hundredths Write the decimal 97.28 in words Three hundred two and one thousand fifty-six ten-thousandths Write the decimal 302.1056 Seventy-two and one thousand eighty-five ten-thousandths Write the decimal 72.1085 in words p 249

  8. Decimals to Standard Form Examples Write each decimal in standard form. • Twelve and six hundredths 12.06 • Fifty-four and seventy-two thousandths 54.072 p 250

  9. Writing Decimals in Standard Form Practice Problems Three hundred and ninety-six hundredths. 300.96 Thirty-nine and forty-two thousandths 39.042 p 250

  10. Writing Decimals as Fractions p 250-251

  11. Decimals as Fractions Examples Write the decimals as a fraction or mixed number. • 0.9 • 21.094 1 decimal place 1 zero 3 decimal places 3 zeros p 250-251

  12. Writing Decimals as Fractions Practice Problems Write 0.037 as a fraction. Write 14.97 as a mixed number. Write 0.12 as a fraction or mixed number. Write 57.8 as a fraction or mixed number Write 209.986 as a fraction or mixed number p 250-251

  13. 1 decimal place 1 zero 3 decimal places 3 zeros Fractions to Decimal Examples Write each fraction as a decimal. • = 0.6 • = 36.005 p 251

  14. Writing Fractions as Decimals Practice Problems p 251

  15. DONE

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