learning math

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Across
  1. 4. easy concepts build on harder concepts
  2. 5. problems in math to challenge and develop skills
  3. 6. problems in math
  4. 8. homework
Down
  1. 1. a sign or character
  2. 2. is a list of things that are in order
  3. 3. is formed by or resulting from accumulation of the addition of successive parts of elements
  4. 7. a relationship or rule using numbers and letters