Operations, Problem Solving, Perimeter and Area Unit Crossword

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Across
  1. 3. interior of two dimensional shapes
  2. 5. and check the most powerful problem solving strategy
  3. 6. balanced proportions
  4. 8. deriving a conclusion using logic
Down
  1. 1. sum of edges of two dimensional shapes
  2. 2. pattern analysis
  3. 4. signed whole numbers
  4. 7. a problem-solving plan