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Why do you need to line up the decimal point before comparing and ordering numbers with that small?
Magnitude is very important.
An example should make it clear:
600.0 is bigger than 60.00. 600 and 60.
.0006000 is smaller than .00600. 6/1000 and 6/100
Every zero on the left of the decimal makes digits further to the left ten times bigger. Every zero to the right makes digits further to the right ten times smaller.
Every number you write with a decimal really sits on top of 0000.0000, with the zeroes continuing forever in both directions. We just don't write most of them because they don't tell us anything useful- we only care about the digits that are not zero, and how far away from the decimal they are. You obviously can't skip writing ALL zeroes because then you would lose track of the decimal point for lots of numbers.
There's another way of writing these numbers when you do have a large number of important zeroes though.
Scientific notation keeps track of the actual decimal in a different way.
1.23*10^3 means there are 3 zeroes to the left of the decimal, giving you 1230.
4.567*10^-2 means two zeros to the right, giving you .04567
Since the 4 was in the ones column it goes on the last zero.
In this way we can write numbers like 2.99*10^-12 or 6.02*10^23 without taking up a lot of room to write all the zeroes.
What else can I help you with?
What do you need to line up decimal points before comparing and ordering numbers with decimals?
You do not, but it is easier.
Why can it help to line up the decimal points before comparing and ordering numbers with decimals?
Lining the numbers up makes it easier to spot 0s between the decimal point and the leading non-zero digit.
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."
How can you find out greater than or less than in decimals?
To compare decimals, line up the numbers by their decimal points. Start comparing from the leftmost digit before the decimal point; the larger digit indicates the greater number. If the digits before the decimal are the same, continue comparing each digit to the right until you find a difference. The number with the larger digit at the first point of difference is greater.
Why can it help to line up the decimal points before camparing and ordering numbers with decimals?
When comparing numbers, the digits are compared starting with the highest place value column that is not empty (or contains a zero) across the numbers. If the digits are the same, the next place value column to the right is checked; and so on until a difference is found or all the digits are the same making the numbers equal. By lining up the decimal points the digits of each place value column are now aligned and it is easy to compare the correct digits (that is the digits in the place value columns) and see which order the numbers are (from least to greatest, etc).
What do you need to line up decimal points before comparing and ordering numbers with decimals?
You do not, but it is easier.
Why can it help to line up the decimal points before comparing and ordering numbers with decimals?
Lining the numbers up makes it easier to spot 0s between the decimal point and the leading non-zero digit.
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."
Why do you need to line up the decimal points before comparing and ordering with decimals?
Because the number in decimal form has a different value based on their position from the decimal point. Every one number left of decimal point it will be valued 10 times. If you don't line them up you can compare them because they might have a different value and you will end up messing your calculation.
Ordering decimals from greatest to least?
Sure thing, honey. When ordering decimals from greatest to least, you start by looking at the whole numbers before the decimal point. If they're the same, you move on to the tenths place, then the hundredths place, and so on. It's like lining up your ducks in a row, but with numbers. Easy peasy, lemon squeezy.
Why can it help to line up the decimal points before camparing and ordering numbers with decimals?
When comparing numbers, the digits are compared starting with the highest place value column that is not empty (or contains a zero) across the numbers. If the digits are the same, the next place value column to the right is checked; and so on until a difference is found or all the digits are the same making the numbers equal. By lining up the decimal points the digits of each place value column are now aligned and it is easy to compare the correct digits (that is the digits in the place value columns) and see which order the numbers are (from least to greatest, etc).
What are decimal numbers with decimal points before and after the decimal point called?
There can be no number that has more than one decimal point.
What must you do to numbers in different forms before ordering them?
You must change one or more numbers until they are all the same form.
What decimal numbers come before zero?
Well, isn't that a happy little question! Before zero, we have all the negative decimal numbers, like -0.1, -0.2, -0.3, and so on. Each of these numbers may be small, but they're all important in creating a balanced and beautiful number line. Just remember, in the world of numbers, every value has its place and purpose.
What is the correct way to write out decimals in words?
When writing a decimal out in words, the numbers before the decimal are written as if they are whole numbers, and the numbers after the decimal are read as digits. Therefore, for example, 150.35 is read one hundred and fifty point three five.
What difference does it make if the decimal is placed before or after the number?
If the number is before the decimal, it is a whole number. The numbers after the decimal represent fractions of whole numbers. For example if you had to work 8.5 hours, you would work 8 whole hours plus one half hour.
What are .3 .4and .25 in order?
.25, .3, .4 as 2 becomes before 3 so just pay attention to the 2 in this decimal ordering
