Multiplication is a fundamental mathematical operation that can seem daunting to some, especially when it comes to memorizing tables. However, with a few tricks and understanding of patterns, even the most challenging multiplications can become straightforward. Let's explore how to make 9 times 7 multiplication easy to understand and calculate.
Understanding the Basics of Multiplication
Multiplication is essentially a quick way of adding a number a certain number of times. For instance, 9 times 7 (9x7) means adding 9 together 7 times. So, 9x7 = 9 + 9 + 9 + 9 + 9 + 9 + 9. However, for larger numbers, this method can be time-consuming and prone to errors. That’s why learning multiplication tables by heart is crucial for quick mental math calculations.
The Trick to Multiplying by 9
There’s a clever trick that can help you multiply any number by 9 quickly. It involves using your fingers to represent the multiplier (in this case, 9). Here’s how it works for 9x7:
- Hold up all ten fingers.
- Fold down the finger that corresponds to the multiplier (for 9x7, you would fold down the 7th finger from the left, counting each finger individually starting from 1 on the left).
- The number of fingers to the left of the folded finger represents the tens digit of the product (in this case, 6 fingers to the left, meaning 60).
- The number of fingers to the right of the folded finger represents the ones digit of the product (3 fingers to the right, meaning 3).
This trick is based on the fact that 9 times any single-digit number always results in a two-digit number where the digits add up to 9. For 9x7, following the trick, we get 63 because 6 (the tens digit from the fingers to the left) and 3 (the ones digit from the fingers to the right) indeed add up to 9, and when combined, they form the product 63.
| Multiplication | Product |
|---|---|
| 9 x 7 | 63 |
| Explanation | Using the finger trick or standard multiplication method |
Practicing Multiplication Tables
While tricks like the one described can be very helpful, there’s no substitute for practice when it comes to multiplication tables. Repetition and quizzes can help solidify these facts in your memory, making mental math calculations much easier over time.
Making it Engaging
Learning multiplication tables doesn’t have to be boring. You can turn it into a game or a challenge. For example, you can time yourself to see how quickly you can recite the tables from 1x1 to 10x10, or you can create flashcards to test your recall of specific multiplication facts like 9x7.
Key Points
- The finger trick can help quickly calculate multiplication by 9.
- Recognizing patterns, such as the sum of digits in products of 9, can aid in memorization.
- Practice and repetition are crucial for mastering multiplication tables.
- Making learning engaging through games and challenges can enhance retention.
- Understanding the concept of multiplication as repeated addition can provide a foundation for more complex calculations.
In conclusion, multiplication, including facts like 9 times 7, can be made easier through a combination of understanding the basics, recognizing patterns, and using clever tricks. With practice and the right approach, even the most challenging multiplication facts can become second nature.
What is the product of 9 times 7?
+The product of 9 times 7 is 63. This can be calculated using the standard multiplication method or the finger trick explained earlier.
Why is it important to learn multiplication tables?
+Learning multiplication tables is essential for quick mental math calculations and for building a strong foundation in mathematics. It helps in solving more complex problems and enhances problem-solving skills.
How can I make learning multiplication tables more engaging?
+You can make learning multiplication tables more engaging by turning it into a game, creating flashcards, setting timers for quizzes, or even creating songs or rhymes to help remember the facts.
