Best Mental Math Tricks You Need to Know

1. Multiplying a given number by 2

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2. Multiplying numbers which are multiples of 10

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3. Multiplying a given number by 11

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4. Adding three or more digit numbers

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5. Squaring number ending in 5

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6. Divisibility rule for number 2

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7. Divisibility rule for number 4

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Most important math tips and tricks.

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