**Colorado Common Core Education Standards**.

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Coloring WorksheetAddition

Coloring WorksheetSubtraction

Worksheet/Answer keyFractions and Decimals

Worksheet/Answer keyAddition and Subtraction

Worksheet/Answer keyWrite the numbers

Worksheet/Answer keyAddition and Subtraction

Worksheet/Answer keyAddition and Subtraction

Worksheet/Answer keyFractions and Decimals

Worksheet/Answer keyFractions and Decimals

Worksheet/Answer keyFractions and Decimals

Worksheet/Answer keyFractions and Decimals

CO.K.1. Number Sense, Properties, and Operations

K.1.1. Whole numbers can be used to name, count, represent, and order quantity Students can:

K.1.1.b. Count to determine the number of objects. (CCSS: K.CC)

K.1.1.b.i. Apply the relationship between numbers and quantities and connect counting to cardinality. (CCSS: K.CC.4)

K.1.1.b.ii. Count and represent objects to 20. (CCSS: K.CC.5)

K.1.2. Composing and decomposing quantity forms the foundation for addition and subtraction. Students can:

K.1.2.a. Model and describe addition as putting together and adding to, and subtraction as taking apart and taking from, using objects or drawings. (CCSS: K.OA)

K.1.2.a.i. Represent addition and subtraction with objects, fingers, mental images, drawings, sounds, acting out situations, verbal explanations, expressions, or equations. (CCSS: K.OA.1)

K.1.2.a.ii. Solve addition and subtraction word problems, and add and subtract within 10. (CCSS: K.OA.2)

K.1.2.a.iii. Decompose numbers less than or equal to 10 into pairs in more than one way. (CCSS: K.OA.3)

K.1.2.a.iv. For any number from 1 to 9, find the number that makes 10 when added to the given number. (CCSS: K.OA.4)

K.1.2.a.v. Use objects including coins and drawings to model addition and subtraction problems to 10 (PFL).

K.1.2.b. Fluently add and subtract within 5. (CCSS: K.OA.5)

K.1.2.c. Compose and decompose numbers 11–19 to gain foundations for place value using objects and drawings. (CCSS: K.NBT)