宝贝是学乐最新出的学生暑假练习册，包含阅读，数学等各个方面，适用年龄4-14岁
此为官网原版购买的PDF,非扫描，
9册目录：
Summer Express PreK–KSummer Express K–1Summer Express 1–2Summer Express 2–3Summer Express 3–4Summer Express 4–5Summer Express 5–6Summer Express 6–7Summer Express 7–8
学乐Scholastic 出品Summer Express美国小学生的暑假数学阅读综合练习册
此为官网原版购买的PDF,非扫描，
9册目录：
Summer Express PreK–KSummer Express K–1Summer Express 1–2Summer Express 2–3Summer Express 3–4Summer Express 4–5Summer Express 5–6Summer Express 6–7Summer Express 7–8