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This digital task card deck of 32 Boom cards is a fun, interactive way of reinforcing the essential skill of adding within 20, using the change unknown type of equation.  Students will count on by dragging gumballs into empty tens frames to make the required number. They then record the number of gumballs used by choosing the answer and clicking on their choice. This is a great way to provide essential practice.


32 cards may be too many for some students to do in one sitting. It is possible for the teacher to select the number of cards they wish their students to see at one time. Each time a student returns to the deck another random 10 or 15 (teacher's choice) cards will be seen. This means the deck can be used many times with the order of the cards changing each time.


This deck can be used independently at home or in class, for centers or small group work, to provide practice or as an assessment. It can even be projected onto an interactive whiteboards for large group use.


BOOM cards are digital task cards that require NO PREP and are self-checking. This is a super-motivating way to teach new concepts or review and provide practice for previously taught lessons.


Click HERE for a preview of this deck of BOOM Cards.


You will find:

  • A PDF that will provide you with a link to Boom Learning and your purchased set of BOOM cards.


How to use BOOM Cards:

To use Boom Cards, you must be connected to the Internet. Boom Cards play on modern browsers (Chrome, Safari, Firefox, and Edge). Apps are available for Android, iPads, iPhones, and Kindle Fires. For security and privacy, adults must have a Boom Learning account to use and assign Boom Cards. You will be able to assign the Boom Cards you are buying with "Fast Pins," (play provides instant feedback for self-grading Boom Cards). Fast Play is always a free way for students to engage with Boom Cards decks. For additional assignment options you'll need a premium account. 


If you are new to Boom Learning, you will be offered a free trial of Boom Learning’s premium account. Read here for details:


Terms of Use:

This resource is for one classroom use only. It is bound by copyright laws and redistributing, editing, selling or posting this item (or any part thereof) on the internet are all strictly prohibited  without first gaining permission from the author. Violations are subject to the penalties of the digital Millennium Copyright Act. 


Addition to 20 Change Unknown Boom Cards

  • PDF (3 pages with a link to Boom Learning) 3.5 MB

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