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23/9/19 LO: To read and write numbers to 1000 in Roman numerals

Master writing numbers in Roman numerals up to 1000, and learn how to use negative numbers in calculations. Watch tutorial videos included.

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23/9/19 LO: To read and write numbers to 1000 in Roman numerals

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  1. 23/9/19 LO: To read and write numbers to 1000 in Roman numerals

  2. Write numbers to 100 in Roman numerals

  3. We use the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 in our counting system. • In ancient Rome, they used Roman numerals. • I = 1 • V = 5 • X = 10 • L = 50 • C = 100 • They combined these letters to form other numbers.

  4. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 I VI XI XVI • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 XVII II VII XII XVIII III VIII XIII XIX XIV IV IX XX XV V X

  5. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 X LX • 10 • 20 • 30 • 40 • 50 • 60 • 70 • 80 • 90 • 100 LXX XX LXXX XXX XC XL C L

  6. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 VI XX LXX VII • 26 • 63 • 36 • 94 • 49 • 77 • 28 • 82 • 54 • 45 III VIII LX XX VI II XXX LXXX IV IV XC L XL IX XL V

  7. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 XXX XC V IX • 35 • 72 • 27 • 83 • 38 • 99 • 29 • 92 • 74 • 47 II IX LXX XX VII II XX XC III IV LXXX LXX XXX VIII XL VII

  8. Read Roman numerals to 100

  9. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 6 38 69 • VI • IX • XV • XXVIII • XXXVI • XXXVIII • XLII • XLV • LI • LIV • LXIX • LXXIV • LXXXI • XCVII • XCIX 9 42 74 15 45 81 28 51 97 36 54 99

  10. I = 1 • V = 5 • X = 10 • L = 50 • C = 100 4 37 64 • IV • VII • XIX • XXVI • XXXIV • XXXVII • XLI • XLIV • XLIX • LV • LXIV • LXXIX • LXXXIII • XCIV • XCVIII 7 41 79 19 44 83 26 49 94 34 55 98

  11. Write numbers to 1000 in Roman numerals https://www.youtube.com/watch?v=SIg3mTIn27Q

  12. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 C DC • 100 • 200 • 300 • 400 • 500 • 600 • 700 • 800 • 900 • 1000 DCC CC DCCC CCC CM CD M D

  13. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 C D XXX LX III • 133 • 244 • 301 • 449 • 505 • 560 • 648 • 792 • 870 • 972 VIII IV XL XL CC DC I XC CCC DCC II IX XL LXX CD DCCC II D V CM LXX

  14. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 C D XX XC IV • 124 • 249 • 305 • 494 • 509 • 590 • 634 • 799 • 850 • 981 IV IX XL XXX CC DC V XC CCC DCC IX IV XC L CD DCCC I D IX CM LXXX

  15. Read Roman numerals to 1000

  16. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 104 403 666 • CIV • CCXXVIII • CCCXLV • CCCLXXXVI • CCCXCIX • CDIII • CDXC • DXLI • DCIV • DCXL • DCLXVI • DCCXCVII • DCCCX • CML • CMLXXXIV 228 490 797 345 541 810 386 604 950 399 640 984

  17. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000 107 409 777 • CVII • CCXXXVI • CCXLIV • CCCLXXVIII • CCCXC • CDIX • CDLX • DLXXI • DCII • DCXX • DCCLXXVII • DCCXCIX • DCCCXXX • CMLXI • CMXCVI 236 460 799 244 571 830 378 602 961 390 620 996

  18. 24/9/19 LO: To use negative numbers in calculations

  19. Subtract to make a negative answer https://www.youtube.com/watch?v=rB9LaQgfscA

  20. -4 5 – 9 = 1 – 6 = 4 – 5 = -8 -8 -8 2 2 2 -1 -1 -1 9 9 9 -4 -4 -4 6 6 6 -10 -10 -10 0 0 0 -2 -2 -2 8 8 8 -6 -6 -6 4 4 4 -7 -7 -7 3 3 3 10 10 10 -3 -3 -3 7 7 7 -9 -9 -9 1 1 1 -5 -5 -5 5 5 5 -1 -5 -1 -1 -5 -4 -5 -4

  21. -4 3 – 7 = 1 – 8 = 4 – 9 = -8 -8 -8 2 2 2 -1 -1 -1 9 9 9 -4 -4 -4 6 6 6 -10 -10 -10 0 0 0 -2 -2 -2 8 8 8 -6 -6 -6 4 4 4 -7 -7 -7 3 3 3 10 10 10 -3 -3 -3 7 7 7 -9 -9 -9 1 1 1 -5 -5 -5 5 5 5 -5 -7 -1 -5 -7 -4 -3 -4

  22. Add to a negative number

  23. 4 -2 + 8 = -7 + 8 = -3 + 7 = -8 -8 -8 2 2 2 -1 -1 -1 9 9 9 -4 -4 -4 6 6 6 -10 -10 -10 0 0 0 -2 -2 -2 8 8 8 -6 -6 -6 4 4 4 -7 -7 -7 3 3 3 10 10 10 -3 -3 -3 7 7 7 -9 -9 -9 1 1 1 -5 -5 -5 5 5 5 6 1 +1 +2 +3 +4 +6 +7

  24. 3 -4 + 8 = -3 + 9 = -2 + 5 = -8 -8 -8 2 2 2 -1 -1 -1 9 9 9 -4 -4 -4 6 6 6 -10 -10 -10 0 0 0 -2 -2 -2 8 8 8 -6 -6 -6 4 4 4 -7 -7 -7 3 3 3 10 10 10 -3 -3 -3 7 7 7 -9 -9 -9 1 1 1 -5 -5 -5 5 5 5 4 6 +2 +3 +4 +6 +3 +4

  25. Complete number sequences involving negative numbers https://www.youtube.com/watch?v=X2bZIZ-08sc

  26. 7 -5 -3 -1 3 1 5 -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12 -10 2 0 -2 -6 -4 -8 -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12 -3 0 3 9 6 12 -11, -9, -7, , , , , , , 8, 6, 4, , , , , , , -12, -9, -6, , , , , , -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12

  27. 10 -2 0 2 6 4 8 -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12 -11 1 -1 -3 -7 -5 -9 -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12 -2 1 4 10 7 13 -8, -6, -4, , , , , , , 7, 5, 3, , , , , , , -11, -8, -5, , , , , , -8 -1 13 -4 -10 -2 -6 2 9 6 0 8 4 -11 -7 -3 -9 -5 3 10 7 1 5 -12 11 12

  28. 25/9/19 LO: To use negative numbers in context

  29. Compare temperatures involving negative numbers https://www.youtube.com/watch?v=WcJTSOXGb78

  30. Read a scale to calculate across 0 https://www.youtube.com/watch?v=SzRNlrXypag

  31. Solve magic squares with negative numbers https://www.youtube.com/watch?v=dUdtjq3jDZw

  32. Subtract to make a negative answer with larger numbers

  33. 7 8 5 1 -46 39 – 85 = 8 – 89 = 58 – 64 = 3 9 – 58 39 8 -46 -81 -6 0 0 0 4 6 8 9 -81 8 – 8 1 5 -6 6 4 1 5 8 – 0 6 -6 -8 -81 -46 -58 -39

  34. 6 7 2 1 -46 26 – 72 = 5 – 85 = 89 – 91 = 2 6 – 89 26 5 -46 -80 -2 0 0 0 4 6 8 5 -80 5 – 8 0 8 -2 9 1 1 8 9 – 0 2 -2 -5 -80 -46 -89 -26

  35. Add to a negative number with larger numbers

  36. 5 3 21 -32 + 53 = -7 + 67 = -84 + 22 = 3 2 – -32 -7 -84 -62 60 21 0 0 2 1 6 7 60 7 – 6 0 -62 8 4 2 2 – 6 2 +32 +60 +21 +7 +22

  37. 6 9 35 -34 + 69 = -3 + 83 = -89 + 52 = 3 4 – -34 -3 -89 -37 80 35 0 0 3 5 8 3 80 3 – 8 0 -37 8 9 5 2 – 3 7 +34 +80 +35 +3 +52

  38. 26/9/19 LO: To use the column method for addition and subtraction with four-digit numbers

  39. Add four-digit numbers using column addition

  40. 2925 3333 2839 + 86 = 2424 + 909 = 3867 + 2536 = 856 + 567 = 1 1 1 1 2 8 3 9 3 8 6 7 2 4 2 4 8 5 6 2 9 5 2 3 3 3 3 2 5 3 6 9 0 9 5 6 7 8 6 + + + + 6403 1423 1 1 1 1 1 2 1 4 3 4 0 3 6

  41. 2925 2839 + 86 =

  42. 3333 2424 + 909 =

  43. 1423 856 + 567 =

  44. 6403 3867 + 2536 =

  45. 6044 6473 5976 + 68 = 5555 + 918 = 4844 + 4188 = 769 + 652 = 1 1 1 1 1 4 8 4 4 5 5 5 5 5 9 7 6 7 6 9 4 0 4 6 4 7 3 6 4 1 8 8 6 5 2 9 1 8 6 8 + + + + 9052 1411 1 1 1 1 1 1 1 4 1 0 5 2 9

  46. Subtract four-digit numbers using column subtraction

  47. 5366 5069 5421 – 55 = 5815 – 746 = 4342 – 2352 = 4342 – 3444 = 1 1 0 1 3 7 1 1 5 8 1 5 4 3 4 2 4 3 4 2 5 4 2 1 6 5 6 6 3 0 5 9 - - - - 3 4 4 4 2 3 5 2 7 4 6 5 5 1990 898 3 3 1 2 1 1 2 3 1 1 9 8 9 0 8 9 1 0

  48. 5366 5421 – 55 =

  49. 5069 5815 – 746 =

  50. 4342 – 2352 = 1990

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