= Sign

3. Which way of thinking about the = sign in a problem like 5 + 3 = __ + 2 is the belief that is the most common for children to have in elementary school?

A. "=" means that you should write on the right the answer to the calculation on the left.

B. "=" means that the two sides are the same

C. "=" means that you should do all of the calculations that are anywhere in the number sentence.

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