solve by nikhilam method, 7multiply11.
Answers
Step-by-step explanation:
For those who don't know what Nikhilam method is -
So, we'll first write the numbers on the left one below the other and subtract 10 from them and write the answer on the right.
11| -1
7| -3
Now, we get the last two digits of the product by multiplying the numbers on the right.
11| -1
07| -3
____
| 3
The numbers on the left are added (11 + 07 = 17) and 10 is subtracted from the sum (17 - 10 = 7) to obtain the first two digits of the product.
11| -1
07| -3
____
18 | 3
But, there seems to be a problem here, right?
Yes, the last two digits have a +ve sign in front of them. How do you get rid of that?
You simply reduce the first two digits of the product by 1; and you add 10 to the last two digits.
11 | -1
07| -3
____
17 | 2
Oops! Still the same problem. What do you do?
Repeat the step - You simply reduce the first two digits of the product by 1; and you add 10 to the last two digits.
11 | -1
07| -3
____
11 | 1
Therefore, the product of 11 and 7 is 111.