206 – Traditional Method to Subtract within 1000

Grade:

3rd

CCSS:

3.NBT.2

Math Concepts:

Subtraction

Episode:

206

SMP:

MP #3, MP #4, MP #5, MP #6, MP #7, MP #8

Description:

Join Mrs. Ignagni for a Mystery Math Mistake with T-Pops. See if you can be a detective and figure out what step T-Pops forgot in the traditional method! Next we are going to work on showing subtraction in the traditional method in more than one way. Do you think you can solve the way D.C. does for subtraction by renaming numbers as he decomposes? Last we spend a lot of time looking into T-Pops traditional method with his fun place value mat. We will build the minuend with discs and the subtrahend with strips!

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