Unit 5, Lesson 34# Subtract mixed numbers

EngageNY 60 min(s)

In this lesson, students use a number bond to decompose the minuend to take out one whole when subtracting a fraction from a mixed number that does not have enough fractional units and then model with a number line. Students also subtract a mixed number from a mixed number by first subtracting the whole numbers and then using a number bond to decompose the subtrahend when there are not enough fractional units in the minuend and then model with a number line. Finally, students rename the total to subtract a mixed number from a mixed number when there are not enough fractional units using the arrow way.