answersLogoWhite

0

Because 42.0+7.8 is different from adding 42+78. it makes adding easier!

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

Explain why it is important to line up decimal numbers by their place value when you add or subtract them?

explain why it is important to line up decimal numbers by their place value when you add or subtract them


Why it is important to line up decimal numbers by their play value when you add or subtract them?

This is true for adding and subtracting ALL numbers, not just decimal representations.


Why is it important to line up the decimal point before or after adding a decimal?

That is because if you don't, you will get the wrong answer. It is ALWAYS important to LINE up the decimals.


How do you add decimal numbers?

Line up the decimal numbers like this, 100.5 + 9.0 then add normally and put in the decimal right below the decimal obove.^


How do you multiply by a decimal?

line up the numbers and decimals multiply regularly then bring the decimal down


Why is it important to line your decimal up?

Because if you don't line them up you will get a total different answer.


Why do you line up the decimal numbers?

We line up the decimal numbers so as to get accurate results. Example: 0.2 + 7.31 + 1.054 * It is easier to add this vertically. 0.2 7.31 1.054 ==== 8.564


Why do you line up decimal points?

It is easier to add up numbers. It may also be easier to spot errors where the decimal point is misplaced.


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

No, it is not true.


What is 0.88 plus 0.035 equals to?

To add decimal numbers you line up the decimal points... _0.88 +0.035 --------- _0.915


Why is it better to right align numbers?

So the decimal points line up and you can have a visual clue that larger numbers are longer.


Why is it not necessary to line up the decimal point when multiplying two numbers?

Because the number of digits after the decimal place in a product does not require that.