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Hey awesome Question. The answer is no you do not have to line up the decimals when multyping only when adding and subtracting. The main thing is when you multiply make sure you put the decimal in the right place in your answer. YOu count how may places their are behind the decimals in BOTH numbers then you make sure their are that many places behind the decimal in you answer. :)

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14y ago

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Is it true when multiplying decimal numbers you must line up the decimals in the two numbers being multiplied?

No, it is not true.


Why don't you need to line up the decimals when multiplying?

When multiplying decimals, you don't need to line up the decimal points because the operation focuses on the whole numbers first. The placement of the decimal point in the final product is determined after completing the multiplication by counting the total number of decimal places in the factors being multiplied. This approach simplifies the multiplication process, allowing you to treat the numbers as whole numbers before adjusting the result for the decimal places.


Do you have to line up the decimals when multiplying?

No, it is not necessary. But it does help to be tidy.


What are the of examples of whole number?

Whole numbers are integers that do not include decimals or fractions as for example the whole numbers in the number line


What do you do when you add or subtract decimals?

Adding and subtracting decimals is easy. When you put the numbers one above the other, line up the decimals vertically and treat as you would any whole number just keep the decimals in line and bring it straight down to your answer.


What are some of the rules to follow with decimals?

1. When adding, the decimals MUST line up: 012.3 +32.1 2. When multiplying, you dont have to put the decimals side by side: 12.3 x323.55 Then you count how many numbers are after the decimals, which, in this case, is three. Hope it helped!


Are negative numbers integers?

Integers can be negative or positive numbers providing that they are whole numbers without decimals or fractions.


When do you line up the decimal?

you only line the decimals up when you are subtracting or adding not when you are multiplying im not sure about division...


Why do you need to line up the decimal points before comparing and ordering numbers with decimals?

This answer is irrelevant because you did not explain yourself, the correct answer is,"Its important so you can separate whole numbers for parts of whole numbers."


Is 4.83 a real number?

The number 4.83 is a real number. Real numbers include all whole numbers, fractions, and decimals that can be represented as quantities along a continuous line.


How do you do mixed numbers and decimals on a number line?

First, you draw a number line. You then make points for the counting numbers, and place the mixed numbers and decimals between these points, getting their own points and labels.


Are stem-and-leaf displays easy to construct?

yes just if you are using decimals put the whole number then a line then all the numbers after dp in a row