做纸风车，兰兰做了16个，小明做了10个，如果兰兰送给小明4个，谁的风车多？多几个？4P-Z,p8y7i6[+r0Y:G([9V7n
算式：提示;E-E4w(z't3q(X1_+_,A8S+n2m0S4P-Z,p8y7i6[+r0Y:G([9V7n
算式：提示6C0t6])Z5I)M3Y)Y,d._6L;o)t4P-Z,p8y7i6[+r0Y:G([9V7n
算式：提示9h8K,n-m8h1j1C9X9^1h,@,U:W1T2t(f4P-Z,p8y7i6[+r0Y:G([9V7n
答：4@7Q5?9W*n/p4T7y7M6y的风车多，多7f9t.@4S9?4Z3T2h7f0`个。4P-Z,p8y7i6[+r0Y:G([9V7n