If all addends are the same, or very near the same, you can take one of the addends and multiply it by the number of addends that exist, and you have the sum.
For example:
100 + 101 + 99 + 102 + 100 + 103 + 98 = ?
In this case, all addends are close to 100, and there are 7 of them.
So, you can approximate the sum by saying:
100 * 7
...which is 700.
The sum of a set of addends whose sign is the same is the sum of the absolute values of the addends with the same sign as the addends.
multiplication
This is possible because the order of the addends does not matter. For example, 3+8 is the same as 8+3. No matter how you list the addends, the sum will always be the same.
You can change the grouping of the addends and the sum will stay the same
in the equation 3+4=7, 3 and 4 are the addends. 7 is the sum.
The sum of a set of addends whose sign is the same is the sum of the absolute values of the addends with the same sign as the addends.
ÃŒn that case you can multiply one of the addends, times the number of addends.
No.
When all the addends in a sum are close to the same number, it is called "rounding." Rounding helps simplify calculations and provide a quick estimate of the total.
i am a sum. my addends are five different whole numbers. all my addends are greater than zero and less than eleven. all my addends are odd numbers. what am i?
multiplication
you can use whole numbers
Mutltiply that "same" number by the number of data points.
It is a negative number. The answer is the same whether there is an odd or even number of addends.
This is possible because the order of the addends does not matter. For example, 3+8 is the same as 8+3. No matter how you list the addends, the sum will always be the same.
That's the mean (average) of all the addends.
You can change the grouping of the addends and the sum will stay the same