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Okay, I’m having trouble finding different ways to say “composing and decomposing numbers” in my post titles!  But seriously, it’s just THAT important, so I keep writing about it.  Our Kinders and Firsties should be doing these types of activities extensively, so it’s important to find lots of different ways to approach the skill. Today …

Students need a wide variety of concrete experiences composing and decomposing numbers to provide ongoing practice throughout the year.

Life in First: Bears, Bears, Bears

By the end of class presentation, students will be able to share information about their classmate's animal projects with help from the posters and visuals.

Clipping Number Combinations up to 5. Fun hands on activity

Clipping Number Combinations

Number bonds - Math Coach's Corner: CRA for Composing and Decomposing Numbers. An easy activity for practicing all combinations of numbers from 5 to

Mrs. T's First Grade Class: Roll and Add

Roll the dice, add and make a simple graph. Write the number to practice handwriting or. Roll and write the addition sentence.

Rock, Paper, Scissors: Number Identification 0-10 {Subitizing in 5 Ways)

Rock, Paper, Scissors: Number Identification 0-10 {Subitizing in 5 Ways}

Math Tubs in Kindergarten: MORE Printing numbers

*Could also do this for bigger numbers too! Matching ten frames to numbers - this is a great exercise since this is a main focus now in common core standards for math in preK & K.

FREE! This pack includes materials to help your students learn to decompose numbers 3-10.  I add new products and freebies frequently.  I would love for you to  follow me to get email notification of new product uploads! Like me on Facebook for exclusive fan freebies, giveaways, games and sale announcements!

Decomposing Numbers - {{Freebie }} Grade Levels: PreK to Materials to help your students learn to decompose numbers

These mats were designed for use with base-ten blocks.  You can teach your students to use them in a variety of ways:-representation of a number-composing & decomposing numbers-expanded notation-composing & decomposing a ten-one more/one less-ten more/ten less- & more!To use:  I typically print the pages back-to-back (tens & ones on one side, hundreds, tens & ones on the other).

These mats were designed for use with base-ten blocks. You can teach your students to use them in a variety of ways: -representation of a number -composing

Quick and easy ways to add more subitizing to your classroom routines.

The Elementary Math Maniac: Making Subitizing Cards and Double Flap Cards with First Graders.great ideas for teaching combinations/seeing numbers many ways

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