(1)4的相邻数是.J7z/}+e(S'Y和/r*o(K4J5@*R5_1l'T:v7m0E)o'b7V2S:o8U/l6L;~1f(r0H
(2)比6小4的数是0V.T/X5P8l9z5f,]/Y'T:v7m0E)o'b7V2S:o8U/l6L;~1f(r0H
(3)6比5大:?3w-X)l0j;j,[8I1^-a7r;R:i'T:v7m0E)o'b7V2S:o8U/l6L;~1f(r0H
(4)1+4等于4+1,和是,s6c9b/s:s,E.}7o(l1y4t'T:v7m0E)o'b7V2S:o8U/l6L;~1f(r0H