A-A+
(1)a+18=______+______ a×15=______×______(2)m×2.5×0.4=______×(______×______)(3)(a+b)×C=______×_____
问题详情
(1)a+18=______+______ a×15=______×______ (2)m×2.5×0.4=______×(______×______) (3)(a+b)×C=______×______+______×______ (4)m-a-b=______-(______+______) |