一班种树36棵，二班种树41棵，三班种树32棵。-W+s-Q,G
（1）一班比二班少种多少棵？-W+s-Q,G
算式：提示0U5x5v-E8P/O2B.M-W+s-Q,G
答：一班比二班少种(E2x;Y:n1t*j棵。-W+s-Q,G
（2）二班比三班多种多少棵？-W+s-Q,G
算式：提示/x5R3k'H-W+s-Q,G
答：二班比三班多种4Y'W+F4O4t0U)`4Z9^1Y(f5A棵。-W+s-Q,G
（3）三个班一共种多少棵？-W+s-Q,G
算式：提示9Y-p)s'E;q;h-D(F9q5t7_-W+s-Q,G
答：三个班一共种4`+S8k;f+@1v:p7X;i,H3C;|5X4w9s3X'~棵。-W+s-Q,G