Lesson 6

Paper-and-Pencil Subtraction:
Compact Method

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X
  1. 5 + 5 + 20 + 10 + 100 = 100 + 20 +  20 
  2. 100 + 100 + 50 + 5 = 100 + 50 + 50 +  50 + 5 

S. Balance

What will make the two pans balance?

  1. image

    5 + 5 + 20 + 10 + 100 = 100 + 20 + ____________________
  2. 100 + 100 + 50 + 5 = 100 + 50 + 50 + ____________________