5x15

"5x15" means multiplying 5 by 15. In simple terms, it's like adding 15 five times, which totals 75. Multiplication is a quick way to find out how many items you have when you have a certain number of groups with the same amount in each. So, if you have 5 groups of 15 objects, altogether, you have 75 objects. This concept helps in calculating totals efficiently when dealing with multiple groups or repeated quantities.