This math topic focuses on subtracting positive integers using number lines, specifically identifying which number line correctly represents given subtraction equations. The problems challenge students to link visual number line models to subtraction equations, enhancing their understanding of integer subtraction in both visual and numerical formats. The exercises are part of a broader unit on the addition and subtraction of one and two-digit integers, aimed at developing fundamental arithmetic skills with positive numbers using interactive visual aids. Each problem presents a specific subtraction equation and multiple potential number line representations.
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Which number line shows this subtraction equation?