• 做一做(1) ○ = ;(2) ○ = .试题及答案-填空题-云返教育

    • 试题详情

      做一做
      (1)

                          =         
      (2)

                          =         

      试题解答


      18:2:16:9:3:12
      (1)18-2=16(根).
      (2)9+3=12(只).
      故答案为:18,-,2,16;9,+,3,12.
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