Question: count from 1 to 100 how many 7's?
Answer: Just count numbers with 7's: 7, 17, 27, 37, 47, 57, 67, 70, 71, 72, 73, 74, 75, 76, 77(doubled!), 78, 79, 87, 97. The answer is 20 7's. Originally Answered: How many multiples of 7 are there between 1-100?