# Four Digit Numbers

What are Four Digit Numbers?

We may divide 4-digit numbers in 9 groups.

(i) 1000 to 1999 (one thousand to one thousand nine hundred ninety nine)

(ii) 2000 to 2999 (two thousand to two thousand nine hundred ninety nine)

(iii) 3000 to 3999 (three thousand to three thousand nine hundred ninety nine)

(iv) 4000 to 4999 (four thousand to four thousand nine hundred ninety nine)

(v) 5000 to 5999 (five thousand to five thousand nine hundred ninety nine)

(vi) 6000 to 6999 (six thousand to six thousand nine hundred ninety nine)

(vii) 7000 to 7999 (seven thousand to seven thousand nine hundred ninety nine)

(viii) 8000 to 8999 (eight thousand to eight thousand nine hundred ninety nine)

(ix) 9000 to 9999 (nine thousand to nine thousand nine hundred ninety nine)

Note: Four digit numbers begin with 1000.

If all the numbers of one digit, then two digits and then three digits are placed step by step to the right of 1 Thousand according to their place values, the numbers from 1001 to 1999 are formed.

1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007, 1008, 1009, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 10144, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1110, 1111, …………………., 1199, 1200, …………………., 1299, 1300, 1301, …………………………., 1399, 1400, …………………, 1499, 1500, 1501, …………………., 1899, 1900, 1901, ………………….., 1921, …………………., 1971, …………………., 1981, ………………………, 1991, …………………., 1999. Similarly, 2000, …………….., 2199, ………………….., 2299, ……………………, 2799, ……………………, 2899, ………………….., 2999 are formed. Thus, we reach upto 3999, ……………….., 4999, …………………, 5999, …………………, 6999, …………………, 7999, …………………, 8999, ………………….., 9999.

Shown below are some four digit numbers on the abacus:

 2354 Two thousand three hundred fifty four 5241 Five thousand two hundred forty one
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