ГДЗ по математике 2 класс Моро ФГОС Часть 1, 2 Часть 2 | Страница 73

\[\boxed{Стр.\ \mathbf{73}\text{.\ \ }\mathbf{ОК\ ГДЗ\ - \ домашка\ на\ 5}}\]

\[\boxed{\mathbf{1}.}\]

\[4 \cdot 5 = 20\]

\[6 \cdot 4 = 24\]

\[4 \cdot 7 + 4 = 4 \cdot 8 = 32\]

\[4 \cdot 8 = 32\]

\[4 \cdot 3 + 4 = 4 \cdot 4 = 16\]

\[4 \cdot 4 = 16\]

\[4 \cdot 8 = 32\]

\[4 \cdot 9 - 4 = 4 \cdot 8 = 32\]

\[\boxed{\mathbf{2}.}\]

\[7 \cdot 4 = 28\]

\[4 \cdot 9 = 36\]

\[(13 - 4) \cdot 4 = 9 \cdot 4 = 36\]

\[4 \cdot (11 - 8) = 4 \cdot 3 = 12\]

\[5 \cdot 4 = 20\]

\[4 \cdot 6 = 24\]

\[(17 - 9) \cdot 4 = 8 \cdot 4 = 32\]

\[(50 - 45) \cdot 4 = 5 \cdot 4 = 20\]

\[\boxed{\mathbf{3}.}\]

\[1)\ 4 \cdot 3 = 12\ (пропеллеров) -\]

\[у\ 3\ квадрокоптеров.\]

\[2)\ 4 \cdot 6 = 24\ (пропеллера) -\]

\[у\ 6\ квадрокоптеров.\]

\[3)\ 4 \cdot 8 = 32\ (пропеллера) -\]

\[у\ 8\ квадрокоптеров.\]

\[\boxed{\mathbf{4}.}\]

\[5 \cdot 4 = 20\]

\[2 \cdot 4 = 8\]

\[6 \cdot 4 = 24\]

\[9 \cdot 4 = 36\]

\[7 \cdot 4 = 28\]

\[4 \cdot 4 = 16\]

\[\boxed{\mathbf{5}.}\]

\[28 - 7 = 21\]

\[(13 - 9) \cdot 5 = 20\]

\[8 \cdot 4 = 32\]

\[8\ :4 = 2\]

\[28 + 7 = 35\]

\[(30 - 27) \cdot 4 = 12\]

\[\boxed{\mathbf{6}.}\]

\[60 - 18 = 42\]

\[44 + 26 = 70\]

\[47 + 16 = 63\]

\[54 - 19 = 35\]

\[90 - 25 = 65\]

\[50 + 38 = 88\]

\[100 - 88 = 12\]

\[40 - 26 = 14\]

\[\boxed{\mathbf{7}.}\]

\[4 \cdot 5 = 20\ (см) - периметр\ \]

\[пятиугольника.\]

\[Ответ:20\ см.\]

\[\boxed{\mathbf{Вопрос}.}\]

\[4 \cdot 3 = 12\]

\[4 \cdot 5 = 20\]

\[6 \cdot 4 = 24\]

\[8 \cdot 4 = 32\]

\[4 \cdot 7 = 28\]

\[\boxed{\mathbf{Задание\ на\ полях.\ Цепочка}}\]

\[24\ :4 = 6\]

\[6 \cdot 3 = 18\]

\[18\ :9 = 2\]

\[2 \cdot 8 = 16\]

\[16\ :4 = 4\]