This subtracting on a number line within 20 worksheet helps first graders visualize subtraction by jumping back in ones. Each problem includes a number line from 0 to 20, with the starting point marked and arrows showing the jumps. Children solve problems like “15 – 4 = ___” or “19 – 3 = ___” by counting backward. Published by PrintWorksheets.com, this printable supports core math skills for first grade.
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