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I understand the trick for 101 but in the book for multiplying by 303 and etc I don’t understand how to get the answer.Please help

Real simple think of 303 as 3 times 101 so triple the number first then do the 101 trick.

When multiplying a two-digit number by 101, just write that number twice.

When multiplying a three-digit number by 101:

1. Write the first two digits. 2. Add the first and last digits. 3. Write the last two digits.

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I understand the trick for 101 but in the book for multiplying by 303 and etc I don’t understand how to get the answer.Please help

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Real simple think of 303 as 3 times 101 so triple the number first then do the 101 trick.

When multiplying a two-digit number by 101, just write that number twice.

When multiplying a three-digit number by 101:

1. Write the first two digits.

2. Add the first and last digits.

3. Write the last two digits.