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Printable Decompose Numbers Worksheets for Kindergarten:

Decomposing Numbers up to 5

Decomposing Numbers up to 6

Decomposing Numbers up to 7

Decomposing Numbers up to 8

Decomposing Numbers up to 9

Decomposing Numbers up to 10

Decomposing and composing numbers up to 10 involves breaking down numbers into smaller parts (decomposing) and combining smaller parts to form a whole (composing).

- Choose a number (e.g., 10) and demonstrate how to decompose it using the counters. For example, show 10 counters and explain that you can split them into two groups: 5 counters and 4 counters.
- Let the students practice decomposing numbers with their own sets of counters. Encourage them to try different ways of splitting the counters to represent the given number.
- Now, introduce the concept of composing by combining counters to form a given number. For example, start with 7 counters and add 2 more to make 10.
- Have the students represent their decompositions and compositions on paper or the whiteboard by drawing the objects.
- Introduce simple number sentences by writing equations. For example, 6 + 3 = 10
- Discuss the different ways students decomposed and composed numbers. Emphasize that numbers can be represented in various ways.

Click on the following worksheet to get a printable pdf document.

Scroll down the page for more Decompose Numbers to 10 Worksheets.

Decompose Numbers to 10 Worksheet #1

Decompose Numbers to 10 Worksheet #2

Decompose Numbers to 10 Worksheet #3

Have a look at the following lesson if you need review how to decompose/compose numbers to 10.

Decompose/compose numbers to 10

Adding Objects

Subtracting Objects

Addition up to 5

Subtraction within 5

Addition & Subtraction within 5

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