Answer:
The answer is simple.
Explanation:
All you need to do is use those facts you know by multiplying more than one of them together. For example: If you want to find the product of 63 and 47, here's what you need to do:
1. Write the two numbers one below the other as per the places of their digits. Write the bigger number on top and a multiplication sign on the left. Draw a line below the numbers.
2. Multiply ones digit of the top number by the ones digit of the bottom number.
Write the product as shown.
3. Multiply the tens digit of the top number by the ones digit of the bottom number.
This is our first partial product which we got on multiplying the top number by the ones digit of the bottom number.
4. Write a 0 below the ones digit as shown. This is because we will now be multiplying the digits of the top number by the tens digit of the bottom number. Hence, we write a 0 in the ones place.
5. Multiply the ones digit of the top number by the tens digit of the bottom number.
6. Multiply the tens digit of the top number by the tens digit of the bottom number.
This is the second partial product obtained on multiplying the top number by the tens digit of the bottom number.
7. Add the two partial products.
And that should give you your answer.