Multiplying any 3-digit numbers between
100 and 109 together is a 3-step simple technique:

Step 1: Put 1 as the first digit of the answer. It will always be 1.

Step 2: Add the last digits of each numbers. That’s the next two digits of the answer. If the addition results in a single digit number, make sure to put an extra zero before it.

Step 3: Multiply the last digits of each number. That’s the last two digits of the answer. Here also make sure to put an extra zero if the product is a single digit number.

**107**

__X 105__**?**

- The first number will always be 1

**107**

__x 105__**1#### (1x1 = 1)**

- Add the last digits of each numbers. 7+5=12. That’s the next two digits of the answer.

**107**

__x 105__**112## (5+7 = 12)**

- Lastly, multiply the last digits of each number, 7x5=35

**107**

__x 105__**11,235 (5x7 = 35)**

The answer is 11,235.

So, 107 x 105 = 11,235

Another Example:

**108 × 109 = 11,772**

And,

**103 × 106 = 10,918**
Having read this I thought it was really enlightening.

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amount of time both reading and commenting. But so what, it was still worth it!

This is the excellent method to solve such kind of questions. I was looking for a method like this as it used to take so long to solve. Thank you for providing.

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It's wonderful bro. Thanks a lot

ReplyDeleteThanks sir ,you are a teacher

ReplyDeletethanks a lot sir

ReplyDeleteGreat!

ReplyDelete