Lesson 2

Estimating Sums

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
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Use DPP item E to practice the subtraction facts related to the addition facts in Group F.

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E. More Subtraction Facts and Families

Write the answers. Draw a line between facts that are part of the same fact family.

  1. 14 − 10 =
  2. 16 − 10 =
  3. 16 − 6 =
  4. 17 − 7 =
  5. 15 − 5 =
  6. 14 − 4 =
  7. 17 − 10 =
  8. 15 − 10 =