Vocabulary

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Across
  1. 3. SOMETHING MINUS SOMETHING IS THE
  2. 6. PROVING THAT YOUR ANSWER IS CORRECT
  3. 7. A NUMBER WRITTEN ONE DIGIT FOR EACH PLACE VALUE
  4. 9. SOMETHING PLUS SOMETHING IS THE
Down
  1. 1. A GROUP OF 3 PLACE VALUES
  2. 2. value URE THE MAN BILLY
  3. 4. AND EDUCATED GUESS IN MATH
  4. 5. A WAY TO SHOW THE PLACE VALUE OF EACH DIGIT
  5. 8. MAKING A NUMBER CLOSE TO THE ORIGINAL ONE