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Class 6 Maths Worksheet: Integers and Roman Numerals

Maths worksheets lesson 41: Integers and Roman numerals · Set 639 · 40 sums
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The method (Walk the number line): On a number line, the number further right is bigger: −3 > −8, and every negative number is smaller than 0. Same signs: add the sizes and keep the sign. Different signs: subtract the smaller size from the bigger and keep the sign of the bigger size. Taking away more than you have goes below 0: 5 − 12 = −7. Roman numerals: add the values, but a smaller numeral before a bigger one is taken away — IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900.

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  1. 1.On a number line, start at −13 and move 22 steps to the right. Where do you land? (a) 9 (b) −9 (c) −35
  2. 2.At night the temperature in Srinagar was −12 °C. By noon it had gone up by 17 °C. What was the temperature at noon (in °C)?
  3. 3.On a number line, start at −1 and move 23 steps to the right. Where do you land? (a) −22 (b) −24 (c) 22
  4. 4.How many integers are there between −5 and 2? (Do not count −5 and 2 themselves.)
  5. 5.What is (−25) + 31? =
  6. 6.How is 320 written in Roman numerals? (a) CCCXIX (b) CCCXXX (c) CCCXX
  7. 7.On a number line, start at −5 and move 18 steps to the right. Where do you land? (a) −13 (b) −23 (c) 13
  8. 8.Which is bigger: −15 or −14? (a) −14 (b) −15
  9. 9.What is (−16) + 12? (a) 4 (b) −28 (c) 28 (d) −4
  10. 10.At night the temperature in Srinagar was −14 °C. By noon it had gone up by 28 °C. What was the temperature at noon (in °C)?
  11. 11.How is 11 written in Roman numerals? (a) X (b) XI (c) XXI
  12. 12.What is (−5) + 42? =
  13. 13.How many integers are there between −1 and 1? (Do not count −1 and 1 themselves.)
  14. 14.How is 127 written in Roman numerals? (a) CXXXVII (b) CXXVI (c) CXXVII
  15. 15.How many integers are there between −11 and 11? (Do not count −11 and 11 themselves.)
  16. 16.What is (−26) + 32? =
  17. 17.What is (−30) + 32? =
  18. 18.What is (−5) + (−3)? (a) 8 (b) 2 (c) −2 (d) −8
  19. 19.How is 245 written in Roman numerals? (a) CCXLIV (b) CCXLV (c) CCXXXXV
  20. 20.What is (−1) + 35? =
  21. 21.How many integers are there between −10 and 12? (Do not count −10 and 12 themselves.)
  22. 22.How many integers are there between −12 and 9? (Do not count −12 and 9 themselves.)
  23. 23.What number is the Roman numeral LXV?
  24. 24.What is 16 − 18? (a) 34 (b) −2 (c) −34 (d) 2
  25. 25.Which is bigger: −18 or −10? (a) −18 (b) −10
  26. 26.How is 15 written in Roman numerals? (a) XXV (b) XIV (c) XV
  27. 27.Which is bigger: 12 or −8? (a) 12 (b) −8
  28. 28.At night the temperature in Gulmarg was −10 °C. By noon it had gone up by 29 °C. What was the temperature at noon (in °C)?
  29. 29.Which is bigger: 12 or −7? (a) −7 (b) 12
  30. 30.How is 51 written in Roman numerals? (a) LXI (b) LI (c) L
  31. 31.What number is the Roman numeral DCCXXXIV?
  32. 32.What number is the Roman numeral CCCXLIII?
  33. 33.At night the temperature in Tawang was −9 °C. By noon it had gone up by 18 °C. What was the temperature at noon (in °C)?
  34. 34.What number is the Roman numeral DCC?
  35. 35.What number is the Roman numeral LXVI?
  36. 36.What is (−21) + 46? =
  37. 37.How many integers are there between −3 and 1? (Do not count −3 and 1 themselves.)
  38. 38.How is 910 written in Roman numerals? (a) DCCCCX (b) CMX (c) CMIX
  39. 39.At night the temperature in Srinagar was −14 °C. By noon it had gone up by 27 °C. What was the temperature at noon (in °C)?
  40. 40.What is (−5) + 1? (a) −4 (b) 4 (c) −6 (d) 6

Answer key

  1. 9
  2. 5
  3. 22
  4. 6
  5. 6
  6. CCCXX
  7. 13
  8. −14
  9. −4
  10. 14
  11. XI
  12. 37
  13. 1
  14. CXXVII
  15. 21
  16. 6
  17. 2
  18. −8
  19. CCXLV
  20. 34
  21. 21
  22. 20
  23. 65
  24. −2
  25. −10
  26. XV
  27. 12
  28. 19
  29. 12
  30. LI
  31. 734
  32. 343
  33. 9
  34. 700
  35. 66
  36. 25
  37. 3
  38. CMX
  39. 13
  40. −4

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