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The number line is a powerful computation tool for young mathematicians! Here’s a set of 52 addition and subtraction cards for practice moving up and back on the number line. Each card has two steps for moving between zero and ten. There are also number lines in two formats. Small number lines will be great for individual use. Half-page size cards are also included. Attach them to a wall or even the floor for a jumbo number line – jump, frog, jump!