按要求写出数。3a8x*R2X9x
4个百5个十6个一:*P6s)f,H6H0].H'S3a8x*R2X9x
3个百和7个一:1_2P.x+?:U/o7j)R;b3a8x*R2X9x
8个百4个十:(}'d7o*j+a3a8x*R2X9x