Standard Description of 5.OA.A.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.
Standards that are taught after students master 5.OA.A.2 are 6.EE.A.2, 6.EE.A.3, 6.EE.A.4, 6.NS.B.4. The Lumos Coherence map for 5.OA.A.2 includes standards correlations, description and a list of apps, questions, videos, books and other resources related to 5.OA.A.2