K.OA.A.3 Worksheets, Workbooks, Lesson Plans, and Games

CCSS.maths.CONTENT.K.OA.A.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)."

These worksheets, games, and lesson plans can help students practise this Common Core State Standards skill.

Worksheets

Count and Add #1
Worksheet
Count and Add #1
Give your child her first lesson in addition with this simple counting worksheet.
Year one
Maths
Worksheet
Count and Add #2
Worksheet
Count and Add #2
Give your child an easy introduction to addition with this counting worksheet.
Year one
Maths
Worksheet
Count and Add #3
Worksheet
Count and Add #3
Learning addition is as easy as 1-2-3! Give your child a head start on addition with this counting worksheet.
Year one
Maths
Worksheet
Halloween maths: Simple Addition 2
Worksheet
Halloween maths: Simple Addition 2
Counting practise gets a spooky treat with this Halloween maths worksheet. Combine coloring with counting and addition!
Year one
Maths
Worksheet
Halloween maths: Simple Addition 3
Worksheet
Halloween maths: Simple Addition 3
Put your child on the path of mastering simple addition with numbers one through 10 this Halloween!
Year one
Maths
Worksheet
Halloween maths: Simple Addition 1
Worksheet
Halloween maths: Simple Addition 1
Counting practise gets a stretch with this Halloween maths worksheet. Combine coloring with counting and addition!
Year one
Maths
Worksheet

Lesson Plans

Friends of Ten
Lesson plan
Friends of Ten
The number ten has lots of friends, and they often come in pairs! Your students will sing a song, enjoy a video, play a game, and work on matching number pairs that make ten!
Year one
Maths
Lesson plan
Vegetable Soup: Combinations of Numbers
Lesson plan
Vegetable Soup: Combinations of Numbers
Cook up a fun classroom learning experience for kindergarteners of all levels and abilities. Have students create combinations of vegetables as they implement principles of addition.
Kindergarten
Maths
Lesson plan

Workbooks

No workbooks found for this common core node.

Games

Building Numbers Song
Song
Building Numbers Song
Kids learn about building numbers with the buttons on grandma's sweater.
Year one
Maths
Song

Exercises

No exercises found for this common core node.

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