教室里有8行单人课桌，每行7张，一共有多少张？2Z.x(`;q+]'t1R'n(X3]-N1S3L:c
算式：提示*M-`1s:f0P:V5f+J*U3A5[0C3R5@2Z.x(`;q+]'t1R'n(X3]-N1S3L:c
答；一共有0m7A7[9A*}5]1\:D,F张。2Z.x(`;q+]'t1R'n(X3]-N1S3L:c