Mathematics is an integral part of our daily lives. It's a subject that requires good mental calculation skills. Students are often faced with math assignments that can be quite challenging.If you ever need help with your math assignments, don't hesitate to seek help from Math Assignment Help or Auditing Assignment Help. In this post, we'll discuss ten mind-blowing math tricks that can help you improve your mental calculation skills.
Trick 1: Multiply by 11
Multiplying by 11 can be quite tricky, but this trick will make it easy. To multiply any number by 11, simply add the two digits together and place the sum in between the original digits.
Trick 2: Multiply by 9
To multiply any number by 9, hold out all ten fingers, and fold down the finger representing the number you want to multiply by 9. The number of fingers to the left of the folded finger represents the tens digit, and the number of fingers to the right of the folded finger represents the ones digit.
Trick 3: Square Numbers Ending in 5
Squaring numbers ending in 5 is as simple as multiplying the number before 5 by the next consecutive number and adding 25 to the end.
Trick 4: Multiply by 5
To multiply any number by 5, simply divide it by 2 and then multiply it by 10.
Trick 5: Calculate Percentages
Calculating percentages can be quite confusing. To make it easy, simply multiply the original number by the percentage, and then divide by 100.
Trick 6: Square Two-Digit Numbers
To square any two-digit number, use this trick. Take the first digit, multiply it by itself plus one, and then add 25. Then, add the second digit multiplied by itself minus one.
Trick 7: Multiply by 4
To multiply any number by 4, simply double the number and then double it again.
Trick 8: Divide by 5
To divide any number by 5, simply multiply it by 2 and then divide by 10.
Trick 9: Subtract from 1000
To subtract any number from 1000, simply subtract each digit from 9, except for the last digit, which is subtracted from 10.
Trick 10: Add and Subtract Fractions
To add or subtract fractions, you need to find a common denominator. To do this quickly, simply multiply the denominators together.
Conclusion:
Math can be intimidating, but with these tricks, you can improve your mental calculation skills and become a math whiz in no time.
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