file:17 柱状图统计.sb3 file:20 圆的计算.sb3 file:直尺.png file:分数线.jpg file:22 扇形统计及比例(1).sb3 file:Scratch苹果系统版.dmg file:Scratch Windows系统版.exe file:4认识时钟.sb3 file:13 认识长方形和正方形.sb3 file:16 平均数与小数比较.sb3 file:8 9 9乘法.sb3