If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

# Kindergarten: Operations and Algebraic Thinking192 questions10 skills

## K.OA.A.1

39 questions2 skills
Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.

## K.OA.A.2

48 questions2 skills
Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.

## K.OA.A.3

28 questions1 skill
Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation.

## K.OA.A.4

48 questions3 skills
For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.

## K.OA.A.5

29 questions2 skills
Fluently add and subtract within 5.