Предмет: Математика, автор: wwwdimon74

1.Решите задачу: с огорода принесли 8 кг огурцов, а помидоров в 3 раза больше Сколько всего кг овощей принесли с огорода? 2.Выполни вычисления стольиком:148+697. 625-486. 287+359. 840-163. 3.Найди значения вырадений: 32+28:4. 60:(15×2). 60+30:3-2. 100:25×2. 4. Решите уравнение:×:7=8. 5. Начертите прямоугольник со сторонами 4 см и 6 см Найдите периметр и площадь прямоугольника

Ответы

Автор ответа: piksaeva85znayka

1.
8×3=24 кг помидоров принесли
8+24=32 кг овощей всего принесли
-----------------------------------------------
2.
148 625 287 840
  +697 -486   +359 -163
-------- -------- -------- -------
845   139 646 677
------------------------------------------------
3.
32+28÷4=39
1)28÷4=7
2)32+7=39

60÷(15×2)=2
1)15×2=30
2)60÷30=2

60+30÷3-2=68
1)30÷3=10
2)60+10=70
3)70-2=68

100÷25×2=8
1)100÷25=4
2)4×2=8
------------------------------------------
×÷7=8
х=7×8
х=56
проверка
56÷7=8
8=8
-------------------------------------------
Периметр:
(4+6)×2=10×2=20 см

Площадь:
4×6=24 см²

Автор ответа: wwwdimon74

Спасибо вам огромнейшее

Автор ответа: piksaeva85znayka

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