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* 123 * 234 * 345 * 456 * 567 * 678 * 789 I assume this is what you meant. Thanks, but I need all numbers such as 245, 246, 247, 345, 346, 347, 125,137,etc...any number with 3 increasing digits. There are 84 numbers that meet the criterion. 123, 124, 125, ..., 178, 179, 189 = 28 234, 235, 236, ..., 278, 279, 289 = 21 345, 346, 347, ..., 378, 379, 389 = 15 456, 457, 458, 459, 467, 468, 469, 478, 479, 489 = 10 567, 568, 569, 578, 579, 589 = 6 678, 679, 689 = 3 789 = 1

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Q: How many 3 digit numbers are have digits in increasing order?
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