There follows a list of Roman numerals from 980 to 1000 inclusive...
980 = CMLXXX
981 = CMLXXXI
982 = CMLXXXII
983 = CMLXXXIII
984 = CMLXXXIV
985 = CMLXXXV
986 = CMLXXXVI
987 = CMLXXXVII
988 = CMLXXXVIII
989 = CMLXXXIX
990 = CMXC
991 = CMXCI
992 = CMXCII
993 = CMXCIII
994 = CMXCIV
995 = CMXCV
996 = CMXCVI
997 = CMXCVII
998 = CMXCVIII
999 = CMXCIX
1000 = M
1000
M represents 1000, C represents 100, L is 50 and X represents 10. So this would be CMLXXX.
To the nearest 10 it is 980 To the nearest 100 it is 1000
980 + 980 + 980 + 980 + 980 + 980 + 980 = 6860
Starting at 1000 and counting 5 steps back in increments of 4 means you subtract 4 a total of 5 times. So, the calculation is: 1000 - (5 * 4) = 1000 - 20 = 980. Therefore, you reach the number 980.
980 = CMLXXX
1000
M represents 1000, C represents 100, L is 50 and X represents 10. So this would be CMLXXX.
980000
980
1000
980
1 Kilojoule is equal to 1000 joules. So, 980 kilojoules x 1000 joules per kilojoule = 980000 joules.
1000
To the nearest ten, 980 To the nearest hundred, 1000
980 = 1,000 - 20
To the nearest 10 it is 980 To the nearest 100 it is 1000