广场已有雪松40棵，有棕树15棵，雪松和棕树共有多少棵？今年植树节大家又种了26棵柳树，现在共有雪松、棕树和柳树多少棵？7Z,g.y8Z4x3e0P(@,e9E
算式：提示'x(K1X8V5m;h1r'?5Q5I7Z,g.y8Z4x3e0P(@,e9E
答：雪松和棕树共有7H6i0p(C棵，现在共有雪松、棕树和柳树-q'V0J3V1n0W,b6e/m/K/a-D棵。7Z,g.y8Z4x3e0P(@,e9E