CCSS 2.OA.C.4 Worksheets
Grade 2 · Operations & Algebraic Thinking
Use repeated addition to find the total number of objects in a rectangular array of rows and columns.
Below are free printable worksheets that support 2.OA.C.4. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.
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Deliver a whole lesson on 2.OA.C.4 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.
Teaching guide
Use repeated addition to find the total number of objects in a rectangular array of rows and columns.
Build multiplication as equal groups and arrays, then skip counting, then recall of facts. Show that the array shows why a × b = b × a.
Generated and checked in code, so it is correct.
Confusing the number of groups with the number in each group, and adding when a word problem implies repeated groups.