Here’s an example of a **SPEED MATH** shortcut for **MULTIPLYING NUMBERS NEAR 1000 : (Mul) Nr1000** from the **MULTIPLICATION** category.

**When can I use this method?**

For multiplying numbers near 1000. The numbers can be either more than 1000 or less than 1000 or a combination of the two.

You may also use this method to multiply numbers a little farther away from 1000 as long as their differences from 1000 are easy to multiply.

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** Download Practice sheet for MULTIPLYING NUMBERS NEAR 1000**

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**Notes –**

- This method uses the concept (1000 + a) (1000 + b) = [(1000 + a) + b] + ab or [(1000 + b) + a] + ab, where ‘(1000 + a)’ and ‘(1000 + b)’ are numbers near 1000 and ‘a’ and ‘b’ are the respective differences.
- Whenever the number is more than 1000, the difference is written as positive (+ve).
- Whenever the number is less than 1000, the difference is written as negative (-ve).
- When both numbers are either less or more than 1000, you add the product of differences.
- When one number is more than 1000 and another less than 1000, you subtract the product of differences.

**Related Shortcuts –**

Multiplying Numbers near 10: (Mul) Nr10

Multiplying Numbers near 100: (Mul) Nr100

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## One reply on “[Speed Math] MULTIPLYING NUMBERS NEAR 1000”

How to solve this sum using this technique – MULTIPLYING ANY NUMBERS NEAR 1000

899 x 1018 = 915182 1

here we have to multiply (-101) x (+18 )

which is time taking

What to do ?