Writing and Interpreting Numerical Expressions

MAFS.5.OA.1.1 – Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.

 

MAFS.5.OA.1.2 – Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.

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