**Colorado Education Standards**.

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Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

Worksheet/Answer keyWhole Numbers

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.a. Use number names and the count sequence. (CCSS: K.CC)

K.1.1.a.i. Count to 100 by ones and by tens. (CCSS: K.CC.1)

K.1.1.a.ii. Count forward beginning from a given number within the known sequence. (CCSS: K.CC.2)

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.1.1.c. Compare and instantly recognize numbers. (CCSS: K.CC)

K.1.1.c.i. Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group. (CCSS: K.CC.6)

K.1.1.c.ii. Compare two numbers between 1 and 10 presented as written numerals. (CCSS: K.CC.7)

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)

CO.K.4. Shape, Dimension, and Geometric Relationships

K.4.1. Shapes can be described by characteristics and position and created by composing and decomposing. Students can:

K.4.1.a. Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres). (CCSS: K.G)

K.4.1.a.i. Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to. (CCSS: K.G.1)

K.4.1.a.ii. Correctly name shapes regardless of their orientations or overall size. (CCSS: K.G.2)

K.4.1.b. Analyze, compare, create, and compose shapes. (CCSS: K.G)

K.4.1.b.i. Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts and other attributes. (CCSS: K.G.4)

K.4.1.b.ii. Model shapes in the world by building shapes from components and drawing shapes. (CCSS: K.G.5)

K.4.2. Measurement is used to compare and order objects. Students can:

K.4.2.a. Describe and compare measurable attributes. (CCSS: K.MD)

K.4.2.a.iii. Directly compare two objects with a measurable attribute in common, to see which object has “more of”/“less of” the attribute, and describe the difference. (CCSS: K.MD.2)

K.4.2.b. Classify objects and count the number of objects in each category. (CCSS: K.MD)

K.4.2.b.i. Classify objects into given categories. (CCSS: K.MD.3)

K.4.2.b.ii. Count the numbers of objects in each category. (CCSS: K.MD.3)

K.4.2.b.iii. Sort the categories by count. (CCSS: K.MD.3)