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Contenido principal

STANDARDS

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US-KY

Math

Kentucky Math

Grade 2: Operations and Algebraic Thinking

Cluster: Represent and solve problems involving addition and subtraction.

2.OA.1

Fully covered
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, by using drawings and equations with a symbol for the unknown number to represent the problem. (MP.1, MP.2 and MP.4)

Cluster: Add and subtract within 20.

2.OA.2

Fully covered
Fluently add and subtract within 20 using mental strategies. (MP.2, MP.7, MP.8)

Cluster: Work with equal groups of objects to gain foundation for multiplication.

2.OA.3

Mostly covered
Determine whether a group of objects (up to 20) has an odd or even number of members; write an equation to express an even number as a sum of two equal addends. (MP.2, MP.7)

2.OA.4

Fully covered
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. (MP.2, MP.4)