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Roman Numerals

Roman Numerals. Learning objective: To learn how to count using Roman numerals. The Romans did not have separate characters for numbers as we do today. Instead they used letters to symbolise different numbers. What were the Roman numerals?. Write out the following numbers in Roman numerals:.

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Roman Numerals

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  1. Roman Numerals Learning objective: • To learn how to count using Roman numerals.

  2. The Romans did not have separate characters for numbers as we do today. Instead they used letters to symbolise different numbers.

  3. What were the Roman numerals?

  4. Write out the following numbers in Roman numerals: • 21 = • 29 = • 19 = • 6 = • 45 =

  5. Write out the following numbers in Roman numerals: • 21 = XXI • 29 = • 19 = • 6 = • 45 =

  6. Write out the following numbers in Roman numerals: • 21 = XXI • 29 = XXIX • 19 = • 6 = • 45 =

  7. Write out the following numbers in Roman numerals: • 21 = XXI • 29 = XXIX • 19 = XIX • 6 = • 45 =

  8. Write out the following numbers in Roman numerals: • 21 = XXI • 29 = XXIX • 19 = XIX • 6 = VI • 45 =

  9. Write out the following numbers in Roman numerals: • 21 = XXI • 29 = XXIX • 19 = XIX • 6 = VI • 45 = XLV

  10. What are these numbers? • XXIII = • CL = • CI = • LVII = • LXVI =

  11. What are these numbers? • XXIII = 23 • CL = • CI = • LVII = • LXVI =

  12. What are these numbers? • XXIII = 23 • CL = 150 • CI = • LVII = • LXVI =

  13. What are these numbers? • XXIII = 23 • CL = 150 • CI = 101 • LVII = • LXVI =

  14. What are these numbers? • XXIII = 23 • CL = 150 • CI = 101 • LVII = 57 • LXVI =

  15. What are these numbers? • XXIII = 23 • CL = 150 • CI = 101 • LVII = 57 • LXVI = 66

  16. Change the Roman numerals below to our numbers • X • VIII • XIII • D • LVII • XCI • LXV • XXXIII • XLV • LXXXVI

  17. Now change the following to Roman numerals • 3 • 6 • 14 • 27 • 38 • 55 • 87 • 91 • 503 • 197 • 363

  18. Now do these Roman sums:

  19. Now answer this question: • Why do you think we no longer use Roman numerals today?

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