You enter the problem into the calculator and when you are finished you press the equals sign to make it give you the answer to your problem.
Here is an example;
If I wanted to know what the sum (or total) was for 2 + 10+ 16 - I would enter the number 2 and then the plus sign + and then the number ten and the plus sign + and then the number sixteen and the plus sign again + and then press the equals sign which looks like this =. when I press the equals sign = the calculator gives me the answer to my question of what the total of those numbers are.
I hope this helps?
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