Question

Как считать в уме БЫСТРО?

Answer 1

Ответ:

Молча)

Пошаговое объяснение:

Answer 2

Ответ:

тренеруйся в столбик каждый день,а потом сможешь считать в уме

Answer 3

How to Calculate Quickly in Your Head

Calculating quickly in your head can be a useful skill in various situations. Here are some tips to help you calculate faster:

1. Break Down Numbers: Break down larger numbers into smaller, more manageable parts. For example, if you need to multiply 47 by 8, you can break it down into (40 x 8) + (7 x 8). This makes the calculation easier and faster.

2. Use Approximations: When you need an approximate answer, round numbers to the nearest whole number or a multiple of 10. This simplifies calculations and gives you a quick estimate.

3. Utilize Mental Math Tricks: There are several mental math tricks that can help you calculate faster. For example, to multiply a number by 9, multiply it by 10 and then subtract the original number. To multiply by 11, duplicate the digit and place it in the middle. These tricks can save you time and effort.

4. Practice Mental Math Exercises: Regularly practicing mental math exercises can improve your speed and accuracy. There are many resources available online that provide mental math exercises and techniques to help you improve your skills.

5. Use Patterns and Relationships: Look for patterns and relationships between numbers that can simplify calculations. For example, multiplying by 5 is the same as dividing by 2 and then multiplying by 10. Recognizing these patterns can make calculations faster and more efficient.

Remember, practicing mental math regularly is key to improving your speed and accuracy. With time and practice, you'll become more comfortable and proficient in calculating quickly in your head.

I hope these tips help! Let me know if you have any other questions.