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      Question

      Select the correct set of symbols:  21   

      9    13    7 = 195
      A ×, –, ÷ Correct Answer Incorrect Answer
      B +, ÷, – Correct Answer Incorrect Answer
      C +, –, ÷ Correct Answer Incorrect Answer
      D ×, +, – Correct Answer Incorrect Answer

      Solution

      21    9    13    7 = 195 After change 21 x 9 + 13 – 7 = 195 189 + 13 – 7 = 195 202 – 7 = 195

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