Вопрос школьника по предмету Математика
5 см2 18см2 = ? мм2
?ч ?мин = 380мин
7 т ? кг =7200кг
9 км 040 м = ? м
РЕШИТЕ ПОЖАЛУЙСТА , ОЧЕНЬ НУЖНО 40 Б дам !
Ответ учителя по предмету Математика
836+507=1343 — 13м43см12722+7539=20261 -20км261м2135+2986=5121 -5т1ц21кг(4х60+46)+(5х60+32)=286+332=618 — 6ч18мин.
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