Algebraic skills are important building blocks for competency in math. Critical concepts dealing with operations and simple algebraic methods are explored, including addition and subtraction techniques, simple word problems, and decomposing numbers. Helpful images engage readers, and accessible text makes each skill easy for them to understand. Readers discover how to find the missing number to make 10 in a variety of simple equations. The text focuses on standard K.OA.A.4 of the Common Core State Standards for Mathematics.