A set of partitioning number cards to create number sentences when grouping in tens.
Students decompose a range of two digit numbers by connecting them with their corresponding ‘tens’ and ‘ones’ cards.
Print, cut out, and laminate a class set of the decomposing cards and store in a zip-loc bag. Individually, or in small groups, students connect the number cards with the addition and equals sign cards to create a number sentence.
Download this resource as part of a larger resource pack or Unit Plan.
Common Core Curriculum alignment
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
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