2-Digit Addition Within 100 | Place Value Strategies
by T is for Teaching © 2026
Premier Publisher
Price: $3 USD
Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction
Grades: 2
Description
Help students build a deeper understanding of 2-digit addition within 100 with this interactive Boom Card deck! Students practice adding 2-digit numbers using visual models, place value strategies, and increasingly independent problem solving. This deck includes 30 self-checking practice cards that move from supported models to independent addition practice. Students work with a variety of strategies so they can see how tens and ones can be composed, decomposed, and combined to find a sum. Students will practice: - Base-Ten Blocks: Students use and move tens rods and ones cubes to model each addend and find the sum. - Make-a-Ten Strategy: Students break apart an addend and use part of it to make the next friendly ten before adding the remaining amount. - Expanded Form: Students separate each number into tens and ones, add the tens, add the ones, and then combine the partial sums. - Open Number Lines: Students break apart an addend into tens and ones and use jumps on an open number line to find the total. - Strategy Recognition: Students identify equations and models that correctly represent different addition strategies. - Error Analysis: Students examine another student's work, decide whether the strategy is correct, and identify mistakes
Acknowledgements
Font used: Montserrat (Open Source / Google Fonts) The Base Ten Block graphics are from Zip-a-Dee Doo-Dah Designs.