When you add two or more prime numbers you will only end up with a whole number and not a decimal number.
The basic idea is the same as when you estimate sums and differences of larger numbers (which may or may not be integers). You round the numbers to one or two decimal digits, then add them up.
This is true for adding and subtracting ALL numbers, not just decimal representations.
If there are any numbers which are integers and so do not have a decimal point, then append one at the extreme right. Then arrange all the numbers in a column, with their decimal points aligned. Ad up the numbers ignoring the decimal points entirely. In the answer insert a decimal point under the column of decimal points.
No two prime numbers can add to 119.
Line up the decimal numbers like this, 100.5 + 9.0 then add normally and put in the decimal right below the decimal obove.^
When you add two or more prime numbers you will only end up with a whole number and not a decimal number.
explain why it is important to line up decimal numbers by their place value when you add or subtract them
The basic idea is the same as when you estimate sums and differences of larger numbers (which may or may not be integers). You round the numbers to one or two decimal digits, then add them up.
When the fractional parts, if any, of the two decimal numbers sum to 1.
no, they add to 10.10 To add decimal numbers you add like any other problem and bring down the decimal point
137 and 11 are two prime numbers that add up to 148.
This is true for adding and subtracting ALL numbers, not just decimal representations.
If there are any numbers which are integers and so do not have a decimal point, then append one at the extreme right. Then arrange all the numbers in a column, with their decimal points aligned. Ad up the numbers ignoring the decimal points entirely. In the answer insert a decimal point under the column of decimal points.
0.8000000000000114
It is easier to add up numbers. It may also be easier to spot errors where the decimal point is misplaced.
You line up the numbers 55.85+555.95=n Then you add normal and you bring the decimal straight down 55 555.95 55.85 611.80