Unit 7 · Finding Procedures
Melissa's Cake — How Much Is Left?
Lesson 3 of 5
About this lesson
Melissa has a 10-piece cake. She gives 2 to John, then gives Sue HALF OF WHAT IS LEFT, then eats 1 herself. What fraction remains? Three separate steps shrink the cake — and students must execute them in the correct order. The most common error is giving Sue half of the original cake (half of 10 = 5) rather than half of what's left after John (half of 8 = 4).
Chapters
Question
Melissa cuts her birthday cake into 10 equal pieces.
She gives 2 pieces to John, then gives Sue half of what is left.
Melissa then eats one piece.
What fraction of the cake does Melissa have left?
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