Terms for subject General containing five-year-old

English	Russian
five-year-old	пятилетний
five-year-old boy	пятилетний мальчик
forty-five-year-old	сорокапятилетний
forty-five-year-old	сорокапятилетний (45-ле́тний)
it is a smart speech for a five-year old	для пятилетнего ребёнка, он очень умно говорит
seventy-five-year-old	семидесятипятилетний
twenty-five-year-old	двадцатипятилетний