This math topic focuses on using base 10 blocks to practice subtracting numbers with borrowing, incorporating both tens and ones. It is designed for understanding and subtracting 1 and 2-digit integers visually with base 10 blocks. Each question presents a problem where the learner must determine how many blocks are left after subtracting the second group from the first. The problems vary in difficulty and require the learner to interpret the visual data (represented by the base 10 blocks) to find the correct subtraction result among multiple-choice answers.
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How many blocks are left if the second group is subtracted from the first?