兰兰每天写6个大字，从星期一到星期五，兰兰一共写了多少个大字？(X+k2e*d8F0E9O'g'@
算式：提示1B;j'k)J3{:`2r1c,R'r8q(X+k2e*d8F0E9O'g'@
答：兰兰一共写了5m2P)[(x;G:o5Z,H*}*r+C个大字。(X+k2e*d8F0E9O'g'@