What is the sum of 42 and 66?

The answer you get when you add 42 and 66 together is called the sum. The sum of 42 and 66 is displayed below:

108

In math terms, the sum of 42 and 66 would be written as follows:

42 + 66 = 108

When you need to find the sum of numbers such as 42 and 66, just remember that you need to add the numbers together to get the sum.

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