Using their knowledge of patterns, mathematicians can simulate working on an abacus in this worksheet. First, students study the patterns created in numbers 1 through 14, and then apply this pattern to higher numbers, ranging from 2 to 5-digit numbers. Critical thinking skills are on display in this innovative worksheet. If you have an actual abacus in the room, that would make a great assessment at the end (have students come up to show the class various numbers).
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