What do you call a math problem that includes the answer, such as 24 + 36 = 60?

• A. Number sentence
• B. Expression
• C. Equation
• D. Algorithm

Answer: (A)

The main idea here is recognizing the type of math statement that uses numbers and an equals sign to express a fact. This example shows a complete statement about numbers and an operation, so it’s called a number sentence. It has two sides connected by the equals sign, and it can be true or false. In this case, the left side sums to 60, matching the right side, so the sentence is true.

An expression would be just 24 + 36 without an equals sign, so it isn’t a complete sentence. An equation describes a true statement of equality as well, but in 4th‑grade vocabulary, the usual term for this kind of statement is number sentence. An algorithm is a step-by-step method, which isn’t what this is.