A recipe makes 15 cookies. Only whole recipes can be made. How many recipes are needed for 200 cookies?
答案: 14
解题过程
正式练习时，所有答案与解析都在交卷后统一显示，和真实比赛一样。
孩子来做
一键开始今天的任务，像正式比赛一样的密封测试，以及持续记录学习进步的错题本。
家长看到
孩子现在在哪一级、下一步是什么，每周一份简短小结。
老师来教
如果有辅导老师，可以邀请他们查看一个方向，了解课与课之间的一周。
比赛名称仅作说明之用；Prep 与 MAA、MATHCOUNTS、Math Kangaroo、MOEMS 均无隶属关系。
知识点练习、正式考试计时、免费诊断——下面每个系列都有专门的备考页。
Math Olympiads (MOEMS)
Math Olympiads (MOEMS) 备考页 →MATHCOUNTS
MATHCOUNTS 备考页 →AMC series
MAA's ladder: AMC 8 → AMC 10/12 → AIME.
AMC series 备考页 →Math Kangaroo
One paper a year, six levels. Take the one for your grade.
Math Kangaroo 备考页 →ISEE Mathematics Achievement
The math section of the ISEE, from Primary 2 through Lower, Middle and Upper Level — take the one for the grade you are applying to.
ISEE Mathematics Achievement 备考页 →ISEE Quantitative Reasoning
The reasoning math section of the ISEE: word problems and, from Middle Level, quantitative comparisons.
ISEE Quantitative Reasoning 备考页 →SSAT Quantitative
The math sections of the SSAT at Elementary (grades 3–4), Middle (5–7) and Upper (8–11) Level — take the one for the grade you are in now.
SSAT Quantitative 备考页 →History Bee & Bowl
Solo bee, team bowl, and the world stage.
History Bee & Bowl 备考页 →ISEE Verbal Reasoning
Synonyms and sentence completion — the vocabulary section of the ISEE.
ISEE Verbal Reasoning 备考页 →ISEE Reading Comprehension
Passages and questions on main idea, details, inference, vocabulary, and the author's purpose and craft — from Primary 2 up to Upper Level.
ISEE Reading Comprehension 备考页 →SSAT Verbal
Synonyms and analogies — the vocabulary and word-relationship section of the SSAT, Elementary through Upper Level.
SSAT Verbal 备考页 →SSAT Vocabulary
Word-building courses behind the SSAT Verbal section — head words by meaning, Latin and Greek roots, prefixes and suffixes — at Middle (grades 5–7) and Upper (grades 8–11) Level.
SSAT Vocabulary 备考页 →SSAT Reading
Fiction, nonfiction and poetry passages with questions on main idea, details, inference, vocabulary in context and the author's purpose and tone — Elementary through Upper Level.
SSAT Reading 备考页 →