delenie matematika 2 [vynechat] arithmetic 1 [vynechat] aritmetika 1 [vynechat] combinatorics 1 [vynechat] division 1 [vynechat] kombinatorika 1 [vynechat] mathematics 1 [vynechat] probability theory 1 [vynechat] slovné úlohy 1 [vynechat] statistics 1 [vynechat] teória pravdepodobnosti 1 [vynechat] verbal problems 1 [vynechat] zlomky 1 [vynechat] čísla 1 [vynechat] štatistika 1 [vynechat]