Using an Open Number Line to Solve Subtraction Story Problems

This video tutorial teaches how to solve subtraction math story problems using open number lines. It begins with an introduction to number lines, explaining their use in counting and how they can represent different units. The tutorial provides a detailed example of solving 64 - 15 using an open number line, emphasizing the importance of jump sizes. It then presents a story problem involving a trip to Grandma's house, demonstrating how to find the remaining distance using subtraction on a number line. An alternative method of counting up is also shown to solve the same problem, reinforcing the concept of finding missing parts in subtraction.

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