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Common Core · Grade 2 · Maths · Operations & Algebraic Thinking

4 curriculum codes

Maths

Operations & Algebraic Thinking

CCSS.MATH.CONTENT.2.OA.A.1 — opens in a new tab

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

17 resources

CCSS.MATH.CONTENT.2.OA.C.3 — opens in a new tab

Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

12 resources

CCSS.MATH.CONTENT.2.OA.C.4 — opens in a new tab

Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

19 resources