explain are mathematical trick which can make calculation easy
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- Multiplying by 6. If you multiply 6 by an even number, the answer will end with the same digit. ...
- The Answer Is 2. Think of a number. ...
- Same Three-Digit Number. ...
- Six Digits Become Three. ...
- The 11 Rule. ...
- Memorizing Pi. ...
- Contains the Digits 1, 2, 4, 5, 7, 8. ...
- Multiply Large Numbers in Your Head.
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Answer:
googlle ...( easiest trick)
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