Скачать или смотреть Multiply Any 3 Digit # By 11

Steps for multiplying a three-digit number by 11:

1. Write down the first digit of the number.
2. Add the first and second digits together.
3. Add the second and third digits together.
4. Write down the last digit of the number.
5. If any sum in steps 2 or 3 is a two-digit number, carry over the leftmost digit to the previous step.

Example with 237:

1. Write down the first digit (2).

Result so far: 2

2. Add the first and second digits together (2 + 3 = 5).

Result so far: 25

3. Add the second and third digits together (3 + 7 = 10).

Write down the 0 from the sum, and remember to carry over the 1 to the previous sum.
Result so far: 250

4.Write down the last digit (7).

Result so far: 2507

5. Now, remember that we had a carry over from the third step. So, add that carried over digit (1) to the second digit in our result.

Result becomes: 2607
So,
237
×
11
=
2607
237×11=2607.