Mathematics Olympiad Class-7 Test Prep-9 | Buy Now |
1. How many times does the number 3 occur in unit’s place for numbers ranging from 1 to 100?
Numbers ranging from 1 to 100, number ‘3’ occurs in unit’s place in following numbers:
3, 13, 23, 33, 43, 53, 63, 73, 83, 93