Khan Academy Static

Topic A includes lessons 1-3. "Express metric length measurements in terms of a smaller unit; model and solve addition and subtraction word problems involving metric length. Express metric mass measurements in terms of a smaller unit; model and solve addition and subtraction word problems involving metric mass. Express metric capacity measurements in terms of a smaller unit; model and solve addition and subtraction word problems involving metric capacity." EngageNY

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8761_Metric_system_units_of_distance.html

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