Задание2
1) 608см+135см=743 см
2) 3054кг-876кг=2178кг
3) 50072м^2+39028м^2=89100м^2
4) 40000м^2-10000м^2=30000м^2
5) 1704грамм:6=284грамм
6) 1075метров*8=8600метров
7) 80часов:5=16часов
8) 3400секунт*3=10200секунт
задание3
8 ящиков по 10 кг это 80 кг
а осталось 16 кг винограда
задача4
узнаем сколько всего грамм бензина
16325грами-2550грамм=13775грами бензина
найдем в литрах
13775грами:725грамм=19литров
120 / 7 = 17 ост.1
7 - 1 = 6 кг
нужно добавить 6 кг
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- 3 1/6 + 2,6 = - 3 1/6 + 2 3/5 = - 3 5/30 + 2 18/30 = - 2 35/30 + 18/30 = - 17/30
2 13/50 + 2,6 = 2 13/50 + 2 6/10 = 2 13/50 + 2 30/50 = 4 43/50