A set of two-digit addition dominoes to use in the classroom.
Use this teaching resource as a math center activity to encourage students to apply the split strategy (a.k.a. partial sums or decomposition method) when adding.
Print, cut out, and laminate a class set of the dominoes to store in a resealable bag. Alternatively, to reduce plastic use, print on cardstock.
Individually, or in small groups, students connect the dominoes by matching the answer with the question.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations;
Solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction;
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