Multiplying Teen Numbers Using the Formal Algorithm – Free Math Tutoring Video

This free math tutoring video explains conceptually the multiplication algorithm when multiplying two numbers between 10 and 19 using Cuisenaire Rods. This helps aid in understanding what the formula is all about. It is important that children know the formula, but it is also important that they know WHY it works. This video explains the “why.”

For more practice, click here to download a worksheet.