Counting And Cardinality 
K.CC: Compare Numbers. 
K.CC.6  Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group, e.g., by using matching and counting strategies.1 

K.CC.7  Compare two numbers between 1 and 10 presented as written numerals. 
Count To Tell The Number Of Objects. 
K.CC.4  Understand the relationship between numbers and quantities; connect counting to cardinality. 
Know Number Names And The Count Sequence. 
K.CC.2  Count forward beginning from a given number within the known sequence (instead of having to begin at 1). 
Operations And Algebraic Thinking 
1.OA: Represent And Solve Problems Involving Addition And Subtraction. 
1.OA.2  Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. 
Work With Addition And Subtraction Equations. 
1.OA.7  Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2. 

1.OA.8  Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = � – 3, 6 + 6 = �. 
2.OA: Add And Subtract Within 20. 
2.OA.2  Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two onedigit numbers. 
K.OA: Understand Addition As Putting Together And Adding To, And Under Stand Subtraction As Taking Apart And Taking From. 
K.OA.1  Represent addition and subtraction with objects, fingers, mental images, drawings2, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations. 

K.OA.2  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.3  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 (e.g., 5 = 2 + 3 and 5 = 4 + 1). 

K.OA.4  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.5  Fluently add and subtract within 5. 