Lesson 5

Subtract Mixed Numbers

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Task

  1. 9246
  2. 250
  3. 161
  4. 3163 R1
  5. 164.7
  6. 465 R27
  7. I used subtraction to find n. I subtracted 12,713 − 3467 = 9246.
  8. I thought 5000 − 4800 = 200 and then I subtracted 200 − 39 = 161.

R. Use Operations

Choose strategies to solve each problem. Use the pages in the Student Guide Reference section.

  1. 3467 + n = 12,713
  2. 100 × 2.5 = n
  3. 5000 − 4839 = n
  4. 28,468 ÷ 9 = n
  5. 549 × 0.3 = n
  6. 13,047 ÷ 28 = n
  7. Explain your strategy for Question 1.
  8. Explain how you can use mental math to solve Question 3.