同学们种树,先种了37棵,又种了45棵,一共种了多少棵树?其中杨树有48棵,剩下的是柳树,柳树有多少棵?.}3M7I)m7p3L)a(s9X1t-s7X6~'s6v
算式:提示(t+p;Y5T:V8t.W3p4v(z.}3M7I)m7p3L)a(s9X1t-s7X6~'s6v
答:一共种了'o,F9M4l'r1t1Q9M9w+q9r)]棵树,柳树有*e*O1w4A)I9|(]'U.D棵。.}3M7I)m7p3L)a(s9X1t-s7X6~'s6v