noun
a branch of mathematics that deals with the study of numbers and the use of the operations of addition, subtraction, multiplication, and division to solve problems
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The study of arithmetic involves the basic operations of addition, subtraction, multiplication, and division.
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I always struggle with arithmetic when I have to do mental math.
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I'm not a fan of arithmetic, it's just too much for me.
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In the arithmetic of life, sometimes you have to subtract the negative to find the positive.