3.OA.1
Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.
Khan Academy ResourcesUnderstand multiplication using groups of objectsUnderstand multiplication with arraysEqual groupsMultiply using groups of objectsMultiplication in contextsMultiply with arraysUnderstand equal groups as multiplicationMultiplication in real world contextsEqual groupsMultiplication with arraysMore ways to multiplyMultiplication as equal groupsIntroduction to multiplication

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