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Break a number into parts: Kindergarten math

Decompose numbers ≤10 in more than one way (number bonds). A free kindergarten lesson plan, a question set with answers and a printable sheet with its key. Copy it and make it yours.

Lesson plan

Goal

  • Students can do this: decompose numbers ≤10 in more than one way (number bonds).

Teach (10 min)

  • Two parts make the whole.
  • If the whole is 5 and one part is 2, the other part is 3.
  • Work one example on the board while students say each step aloud, then do one together.

Practise (15 min)

  • Students work the printable sheet in pairs, then alone.
  • Or practise it as a game with no sign-up: https://peabody.kids/math/numsense.k_bonds?lesson=k-numsense-bonds-1&at=K

Exit ticket (5 min)

  • Use the first three questions on the printable sheet as a slip.

Printable sheet

Name: ____________________   Date: ____________

Break a number into parts (Kindergarten)

  1. The whole is 5. One part is 1. What is the other part? (A number bond: the two parts make the whole.)
    51?
  2. The whole is 4. One part is 3. What is the other part? (A number bond: the two parts make the whole.)
    4?3
  3. The whole is 4. One part is 1. What is the other part? (A number bond: the two parts make the whole.)
    41?
  4. The whole is 4. One part is 2. What is the other part? (A number bond: the two parts make the whole.)
    42?
  5. The whole is 5. One part is 1. What is the other part? (A number bond: the two parts make the whole.)
    51?
  6. The whole is 5. One part is 4. What is the other part? (A number bond: the two parts make the whole.)
    54?
  7. The whole is 3. One part is 1. What is the other part? (A number bond: the two parts make the whole.)
    31?
  8. The whole is 4. One part is 3. What is the other part? (A number bond: the two parts make the whole.)
    43?
  9. The whole is 4. One part is 2. What is the other part? (A number bond: the two parts make the whole.)
    42?
  10. The whole is 5. One part is 3. What is the other part? (A number bond: the two parts make the whole.)
    53?
  11. The whole is 4. One part is 3. What is the other part? (A number bond: the two parts make the whole.)
    43?
  12. The whole is 4. One part is 1. What is the other part? (A number bond: the two parts make the whole.)
    41?
Key
  1. 4
  2. 1
  3. 3
  4. 2
  5. 4
  6. 1
  7. 2
  8. 1
  9. 2
  10. 2
  11. 1
  12. 3

Written by Peabody from its own skill pages. Free, no ads, no sign-in. Children can practise this on Peabody. More from teachers: teacher-shared resources.