The expression “3×15” is a mathematical notation that represents a simple multiplication operation. The ‘x’ symbol in this expression is a shorthand for the multiplication sign, and ‘3’ and ’15’ are the numbers being multiplied together. Specifically, ‘3×15’ is equal to 45, the product of 3 and 15.
Multiplication is one of the fundamental arithmetic operations that involves combining two or more numbers to produce a single result. In this case, ‘3×15’ represents the result of multiplying the number 3 by the number 15. To perform this multiplication, we can use a variety of techniques or methods, such as:
- Repeated addition: We can add 3 to itself 15 times to get the product of 3×15. For example:3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 45
- Multiplication table: We can use a multiplication table or chart to find the product of 3×15. For example:Copy code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 153 | 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45We can find 3×15 by looking at the row for 3 and the column for 15, and finding their intersection point, which is 45. - Mental calculation: We can use mental math techniques to find the product of 3×15. For example, we can break down 15 into two numbers that are easier to multiply with 3, such as 10 and 5:3×10 = 30 3×5 = 153×15 = 30 + 15 = 45
Multiplication has many real-world applications, such as calculating the total cost of buying multiple items at the same price, finding the area or volume of geometric shapes, or determining the amount of time it takes to travel a certain distance at a given speed. In these cases, multiplication allows us to combine multiple quantities into a single result that represents the total or aggregate amount.
In conclusion, the expression “3×15” represents a multiplication operation that results in the product of 45. Multiplication is a fundamental arithmetic operation that allows us to combine multiple quantities into a single result, and it has many real-world applications in various fields of study and professions.