arithmetic 1 [vynechat] aritmetika 1 [vynechat] combinatorics 1 [vynechat] delenie 1 [vynechat] division kombinatorika 1 [vynechat] matematika 1 [vynechat] mathematics 1 [vynechat] probability theory 1 [vynechat] slovné úlohy 1 [vynechat] statistics 1 [vynechat] teória pravdepodobnosti 1 [vynechat] verbal problems 1 [vynechat] štatistika 1 [vynechat]