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Decimals

Decimals. Place Value, Expanded and Standard Forms. Decimal Word Names. Decimal word names always end in “-th” or “-ths” one tenth four hundredths. Decimal Word Names. Decimal word names always end in “-th” or “-ths” one ten th four hundred ths. Representing the decimal.

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Decimals

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  1. Decimals Place Value, Expanded and Standard Forms

  2. Decimal Word Names • Decimal word names always end in “-th” or “-ths” one tenth four hundredths

  3. Decimal Word Names • Decimal word names always end in “-th” or “-ths” one tenth four hundredths

  4. Representing the decimal • The decimal is represented by the word “and” when writing and saying decimals in words. 2.1 = two and one tenth

  5. Representing the decimal • The decimal is represented by the word “and” when writing and saying decimals in words. 2.1 = two and one tenth

  6. What decimals are • Decimals show amounts between two consecutive counting numbers (3,4…) 0.45 is between 0 and 1 3.861 is between 3 and 4 25,196.8 is between 25,196 and 25,197

  7. How to write decimals numbers greater than one • To write a number containing a whole number and decimal fowllow these steps: • Write the whole number in words • Write “and” • Write the numbers shown in the decimal • Write the last place a digit occupies in the decimal (the farthest right)

  8. How to write decimals numbers greater than one • To write a number containing a whole number and decimal fowllow these steps: • Write the whole number in words • Write “and” • Write the numbers shown in the decimal • Write the last place a digit occupies in the decimal (the farthest right) 32.46 • thirty-two • and • forty-six • hundredths thirty-two and forty-six hundredths

  9. To write decimals in expanded form • Write the place individually 5.306 =

  10. To write decimals in expanded form • Write the place individually 5.306 = 5

  11. To write decimals in expanded form • Write the place individually 5.306 = 5 + 0.3

  12. To write decimals in expanded form • Write the place individually 5.306 = 5 + 0.3 + 0.006

  13. To write decimals in expanded form • Write the place individually 5.306 = 5 + 0.3 + 0.006

  14. To show the value of the decimal places in expanded form • Multiply the digit by the value of the corresponding place 5.306 =

  15. To show the value of the decimal places in expanded form • Multiply the digit by the value of the corresponding place 5.306 = (5 x 1)

  16. To show the value of the decimal places in expanded form • Multiply the digit by the value of the corresponding place 5.306 = (5 x 1) + (3 x 0.1)

  17. To show the value of the decimal places in expanded form • Multiply the digit by the value of the corresponding place 5.306 = (5 x 1) + (3 x 0.1) + (6 x 0.001)

  18. To show the value of the decimal places in expanded form • Multiply the digit by the value of the corresponding place 5.306 = (5 x 1) + (3 x 0.1) +(6 x 0.001)

  19. To put a number in standard form • To put a number in standard (numeral) form from expanded form, just add all places together. 8 + 0.1 + 0.05 + 0.003

  20. To put a number in standard form • To put a number in standard (numeral) form from expanded form, just add all places together. 8 0.1 0.05 0.003

  21. To put a number in standard form • To put a number in standard (numeral) form from expanded form, just add all places together. 8 0.1 0.05 + 0.003

  22. To put a number in standard form • To put a number in standard (numeral) form from expanded form, just add all places together. 8 0.1 0.05 + 0.003 8.153

  23. To put a number in standard form • To put a number in standard (numeral) form from expanded form, just add all places together. 8 0.1 0.05 + 0.003 8.153 Note: No place should have more than one digit in this addition

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