This trick will help you multiply 2 digit numbers without using calculator. This process will help you to multiply any pair of two digit numbers with each other – faster than a calculator – literally.

To multiply two 2 digit numbers without using calculator work, first multiply the ones digits together, then ‘cross-multiply,’ and finally multiply the tens digits together.

Note – Whenever a product exceeds 9, move the tenth digit. Also, you must work your way from right to left.

This trick will also work on numbers with zeroes and decimal points.

Also as you are cross-multiplying, it is generally easier to begin with the larger product and then add the smaller product

Example 1: 12 x 23 = ?

- Multiply the ones digits: 2×3 = 6 (ones digit answer).
- Cross-multiply and add: (1×3) + (2×2) = 7 (tens-digit answer).
- Multiply the tens digits: 1×2 = 2 (hundreds-digit answer).
- Combine: 276 (the answer).

**Thought Process Summary**

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Example 2: 31 x 24 = ?

- Multiply the ones digits: 1×4=4 (ones digits answer).
- Cross-multiply and add: (3×4)+(1×2)=14 (use the 4 as the tens-digit answer, and carry the 1).
- Multiply the tens digits, and add the 1: (3×2)+1=7 (hundreds-digit answer).
- Combine: 744 (the answer).

**Thought Process Summary**

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**Tags: Math Trick, Mental Math, Multiplication in Math, multiply 2 digit numbers without using calculator**
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