The answer is 15.
How Do You Get 15 by Multiplying by 3?
To get 15 by multiplying by 3, you can use the following steps:
- Start with the number 15.
- Divide 15 by 3.
- The answer is 5.
Therefore, 15 ÷ 3 = 5.
Other Ways to Get 15 by Multiplying by 3
There are other ways to get 15 by multiplying by 3. For example, you could use the following methods:
- 15 × 1 = 15
- 15 × 2 = 30
- 15 × 3 = 45
Applications of Multiplying by 3
Multiplying by 3 has many applications in everyday life. For example, you can use it to:
- Calculate the total cost of items in a store
- Determine the number of days in a month
- Figure out the amount of time it will take to complete a task
Conclusion
Multiplying by 3 is a simple mathematical operation that has many useful applications. By understanding how to multiply by 3, you can solve a variety of problems and make your life easier.
Additional Information
Here are some additional facts about multiplying by 3:
- The number 3 is a prime number, which means that it can only be divided by itself and 1 without leaving a remainder.
- The product of two odd numbers is always odd.
- The product of two even numbers is always even.
- The product of a positive number and a negative number is always negative.
Tables
| Number | Multiplied by 3 | Result |
|---|---|---|
| 1 | 3 | 3 |
| 2 | 3 | 6 |
| 3 | 3 | 9 |
| 4 | 3 | 12 |
| 5 | 3 | 15 |
| Number | Divided by 3 | Result |
|---|---|---|
| 15 | 3 | 5 |
| 30 | 3 | 10 |
| 45 | 3 | 15 |
| 60 | 3 | 20 |
| 75 | 3 | 25 |
Tips and Tricks
Here are some tips and tricks for multiplying by 3:
- Use the multiplication table.
- Break down the number into smaller factors.
- Use a calculator.
- Estimate the answer.
Strategies
Here are some strategies for solving problems involving multiplication by 3:
- Use the distributive property.
- Use the associative property.
- Use the commutative property.
- Use mental math.