This video shows you how to use a number line to solve elapsed-time word problems based on five-minute intervals. It addresses CCSS 3.md.1: Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes, e.g., by representing the problem on a number line diagram. You can learn about the CCSS here. You can find accompanying materials and more videos like this one at LearnZillion.
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