Lesson 3

Close Enough!

Est. Class Sessions: 3

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

  1. 9, 11 − 9 = 2
  2. 8, 14 − 8 = 6
  3. 8, 13 − 8 = 5
  4. 8, 18 − 8 = 10
  5. 7, 15 − 7 = 8
  6. 5, 14 − 5 = 9
  7. 6, 13 − 6 = 7
  8. 4, 11 − 4 = 7
  9. 9, 12 − 9 = 3
  10. 9, 17 − 9 = 8

Ongoing Assessment

Use DPP item K to assess students' abilities to use mental math to solve subtraction facts in all groups [E6].

See the Letter Home for targeted practice.

K. Subtraction Practice

Solve each subtraction problem. Write the turn-around subtraction fact for each one.

  1. 11 − 2 =
    _____________________
  2. 14 − 6 =
    _____________________
  3. 13 − 5 =
    _____________________
  4. 18 − 10 =
    _____________________
  5. 15 − 8 =
    _____________________
  6. 14 − 9 =
    _____________________
  7. 13 − 7 =
    _____________________
  8. 11 − 7 =
    _____________________
  9. 12 − 3 =
    _____________________
  10. 17 − 8 =
    _____________________