问题 计算题
和我一起算一算。
(1)583 - 214 - 186
      =583-(       
      =583-(   )
      =
(2)328+295
       =328+300-5
       =
       =
(3)496+257
      = 496+4+(   )
      =
      =
(4)1294-(513+294)
       =1294 -(   )-(   )
       =
       =
答案

(1)583 - 214 - 186

      =583-(214+186)

      =583- 400

      =183(2)328+295

       =328+300-5

       =628-5

       =623

(3)496+257

      = 496+4+253

      = 500+253

      = 753(4)1294-(513+294)

       =1294 - 294-513

       =1000-513

       = 487

选择题
填空题