In this worksheet, students are asked to correct Elfie the Penguin's mistake when dividing a three-digit dividend by a one-digit divisor. Students are asked to solve the problem correctly and then write Elfie a note about how he can correct his work. This is a great activity to see student's understanding of division. This aligns with the common core standard 4.NBT.6. This activity can be used for independent work or cooperative learning.