# Common Core State Standard 2.OA.3

## Operations & Algebraic Thinking

### Work with equal groups of objects to gain foundations for
multiplication.

3. 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.

#### Common Core State Standards: 2.OA.3

Common Core State Standards:
CCSS 2.OA.3

Students must determine if given
numbers are odd or even by shading boxes. Students
determine even numbers by seeing if the number can be placed into
two equal groups.
Common Core State Standards:
CCSS 2.OA.3

Students must determine if given
numbers are odd or even by circling pairs of ovals.
Students determine even numbers by seeing if the number can be
placed into two equal groups.
Common Core State Standards:
CCSS 2.OA.3

Even numbers can be represented
by a doubles addition fact. Students represent each even
number in a doubles addition fact.
Common Core State Standards:
CCSS 2.OA.3 Primer, Prerequisite

Various worksheets dealing with odd and even numbers.