What two numbers add up to 7820?
There are infinite combinations of two numbers that add up to 7820. Here are some examples using negative numbers:
-1 + 7821 = 7820
-2 + 7822 = 7820
-3 + 7823 = 7820
...
Here are some examples using two fractions that will add up to 7820:
7820/2 + 7820/2 = 7820
15640/3 + 7820/3 = 7820
23460/4 + 7820/4 = 7820
...
And here are some examples using two decimal numbers that will add up to 7820:
1.25 + 7818.75 = 7820
2.50 + 7817.5 = 7820
3.75 + 7816.25 = 7820
...
As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 7820?", it may be more interesting to set some criteria to limit the result. We will set the follow criteria:
1) Only positive whole numbers can add up to 7820. (0 is not a positive or negative number and should not be included.)
2) Since a+b=29 is the same as b+a=29, we should only list it once.
Now, the answer to "What two numbers add up to 7820?" has 3910 answers:
1 + 7819 = 7820
2 + 7818 = 7820
3 + 7817 = 7820
.
.
3908 + 3912 = 7820
3909 + 3911 = 7820
3910 + 3910 = 7820
We have truncated the list above due to space, but you may be interested to know that we calculated the number of answers by dividing 7820 by 2 and then rounded down to the nearest whole number if necessary.
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What two numbers add up to 7821?
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