Multiply by 111
Multiplying by 111 is very similar to multiplying by 11. There is no multiplication involved and you only need to know how addition.
Look at the math problem 111 x 4376 = ? Let's see how the trick works.
- First write down the one's digit number: Write 6.
- Add the one's and ten's digit numbers 7 + 6 = 13. Carry your 1. Write 3.
- Add the one's, ten's and hundred's digits 3 + 7 + 6 = 16 and + 1 we carried = 17. Carry 1. Write 7.
- Add the first three numbers 4 + 3 + 7 = 14 and + 1 we carried = 15. Carry 1. Write 5.
- Add the first two numbers 4 + 3 = 7 and + 1 we carried = 8. Write 8.
- Add first number 4 to any numbers we carried over. In this case 0. Write 4.
ANSWER is 485736.
Watch the math video below for a detailed explanation!