decimals and fractions

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Across
  1. 4. a system based on tens, tenths and the power of ten
  2. 5. part of a whole
  3. 7. identical; the same
Down
  1. 1. a number obtained by multiplying 2 or more numbers together
  2. 2. occurring, found or done often
  3. 3. a value represented by a digit
  4. 6. the number of rows and columns in a square matrix