Decomposing numbers 11-20 using 10 Frames and Base 10 blocks (Printable task cards and digital slides)

September 14, 2020

Grades K,1,2

Decomposing numbers 11-20 with Ten Frames and Base 10 Blocks helps students deepen their understanding and find relations and strategies that improve their mental math skills. They build a strong foundation s they prepare for subtraction and other operations.


We have created some printable and digital cards to practice decomposing numbers 11-20.

Here are some samples.


Printable Task-Cards

Digital (google slides) cards

Below is the free file of printable cards and a free google slides version.

The premium version includes much more!

  • 60 printable cards
  • 2 large matching activities
  • A poster
  • 58 google slides.

Get the premium version here.

How to use the cards

The students can color or place counters on the printable cards to get to the answer. If you don’t have counters you can use any little objects that fit in the circles. Laminating the cards will allow the students to use dry-erase markers and correct mistakes easily and will allow you to use them multiple times.

The digital version allows students to drag the counters and the correct answer. There are 58 slides in the presentation so you might consider making copies with fewer slides at a time.

Check out more of our addition task-cards.

Representing and Adding 2/3-digit numbers using Base 10 Blocks (printable and digital centers)

Representing and Adding 2/3-digit numbers using Base 10 Blocks (printable and digital centers)

Thanks for visiting!

Please like and subscribe for more giveaways and updates.

Check out the rest of our free (print and digital) gamestask cardsworksheetspuzzles and more.

Check out our best selling games, now back in stock and available at and

Chicken Escape
Dragon Times - A math adventure card game for kids, Mathematics ...

Check out our best selling card games now available at and

Chicken Escape

A multiplayer card game that makes mental math practice fun! Chicken Escape is a fast-paced multiplayer card game. While playing…

Read More
Dragon Times – A math Adventure card game

Dragon Times is an educational fantasy card game that aims to motivate children to practice multiplication and division facts while…

Read More