(1)a+18= + a×15= ×
(2)m×2.5×0.4= ×( × )
(3)(a+b)×C= × + ×
(4)m﹣a﹣b= ﹣( + )
(1)a+18= + a×15= ×
(2)m×2.5×0.4= ×( × )
(3)(a+b)×C= × + ×
(4)m﹣a﹣b= ﹣( + )
试题篮
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