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Khan Academy
Khan Academy: Multiplying 3 Digit by 1 Digit
Learn to multiply a 3-digit number by a 1-digit number without regrouping. In this video, we will multiply 4x201.
Khan Academy
Khan Academy: Multiplying 3 Digit by 1 Digit (Regrouping)
Learn to multiply a 3-digit number by a 1-digit number using regrouping. In this video, we will multiply 7x253.