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Addition and Subtraction

School supplies: a pencil, notebook, apple, eraser and globe

Add to put groups together. Subtract to take away or find the difference. You can work within 100.

1.Work these out

  • 23 + 14 =
  • 56 - 21 =
  • 40 + 35 =
  • 82 - 30 =
  • 47 + 19 =
  • 90 - 27 =
  • 15 + 18 =
  • 73 - 8 =

2.Missing numbers

  • 24 + ___ = 40
  • ___ - 12 = 20
  • 45 - ___ = 19

3.Word problems

  1. 1. Mia has 28 pencils. She gets 15 more. She has pencils.
  2. 2. A box has 60 apples. The class eats 22. There are left.
  3. 3. Leo reads 17 pages, then 19 more. He reads pages.
  4. 4. There are 34 blue crayons and 28 red crayons. 15 are broken. Crayons that are not broken: