Question

Как правильно умножить число с десятыми на другое число (у меня 45,7 надо умножить на 10 у меня выходит 456 это правильно?)

Answer 1

Перенести запятую и получится 457

Answer 2

Нет
При умножении десятичных на 10 знак просто сдвигается на право один раз

Answer 3

Multiplying a Number with Decimals by Another Number

To correctly multiply a number with decimals by another number, you can follow these steps:

1. Remove the Decimal Point: Ignore the decimal point and perform the multiplication as if the numbers were whole numbers. 2. Count the Decimal Places: Count the total number of decimal places in both numbers being multiplied. 3. Place the Decimal Point: Place the decimal point in the result so that the total number of decimal places is equal to the sum of the decimal places in the numbers being multiplied.

Let's apply these steps to your specific example.

Applying the Steps to 45.7 multiplied by 10

1. Remove the Decimal Point: Treat 45.7 as 457 and multiply it by 10. 2. Count the Decimal Places: 45.7 has one decimal place, and 10 has no decimal places. 3. Place the Decimal Point: The result should have one decimal place, so the answer should be 457.0.

Therefore, the correct result of multiplying 45.7 by 10 is 457.0.

This calculation follows the standard rules for multiplying numbers with decimals, and the result is consistent with the steps outlined above.

If you have any further questions or need additional assistance, feel free to ask!