MA 02.OA.C.3 Determine whether a group of objects (up to 20) has an odd or even number of members

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.

Good Projects here: Illustrative Mathematics https://www.illustrativemathematics.org/content-standards/2

Back to Mathematics Level 2