This math topic focuses on subtraction using base 10 blocks to visually represent problems, assisting learners in understanding the concept of borrowing in subtraction. The exercises revolve around identifying the correct subtraction sentence (equation) for pairs of integers represented by base 10 blocks, which range from hundreds to tens. Each question involves multiple-choice answers, where students must select the appropriate subtraction sentence based on the visual depiction of the problem. The topic is a subset of a broader unit dealing with addition and subtraction of one- and two-digit integers.
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Choose the subtraction sentence if the second group is subtracted from the first?