The answer to an addition question should have no more decimal places than the smallest number of decimal places in the numbers being added. When rounding numbers, numbers 5 though 9 will be rounded up and 1 through 4 will be rounded down.
Round to the nearest decimal
21.7486, but this depends on the rounding rules. Math has different rules that science. I rounded with science rules. Usually rounding to the thousandth would be the third decimal place, making it 21.749
Rounding numbers is easy because their are two rules to rounding numbers. 1) a </= 4 then a = 0 2) a >/= 5 then a = 10
Add your whole numbers
Only if you are rounding up to the nearest dollar. Normal rounding rules would make it 40.
Using rounding rules, 13 is the nearest kilo.
That depends on the rounding rules used.
There are no set rules about rounding numbers, so when rounding numbers, mathematical rules about rounding can be used. For example, 14 would be rounded to 10, but 15 would be rounded to 20. For another example, 1144 is rounded to 1140 and 1145 is rounded to 1150.
See related link below for a good explanation
Using the standard rules for rounding, 35 will be rounded to 40 as the nearest 10.
There is no universal "better". Rounding off is a trade-off between reducing the accuracy and simplifying calculations. Also, if there are other numbers in an addition that are rounded to the nearest hundred, there is no point in rounding your number to the nearest ten.
Inverse and idenity
The rules for addition are as follows:The sum of two negative integers is a negative integerThe sum of two positive integers is a positive integerThe rules for subtraction are as follows:If they are two positive numbers, do it normallyIf there is a negative and a positive ,change it to addition and switch the SECOND integer sign
Here are some examples of different types of mathematics.AdditionAlgebraDivisionMultiplicationRoundingSubtractionSymmetry
all you have to do is add them up
addition subtraction multiplication division
Addition, subtraction, multiplication and division
Properties of addition may be defined as the mathematical rules that are obeyed by the binary operation of addition, defined over some set.
20 rounding units. 20.0 rounding tenths 19.8 rounding hundredths 19.76 rounding thousandths 19.765 rounding tenthousandths 19.7649 rounding hundred thousandths
It depends on what you are rounding by. If you are rounding by ten-thousands=80000 If you are rounding by thousands=85000 If you are rounding by hundreds=84700 If you are rounding by tens=84650
The usual rules of addition of fractions apply.
If you truncate 3.8, you will get 3. Remember, while truncating you don't have to follow the rules of rounding off.
The process of rounding is the same no matter what place you're rounding to.