ГДЗ по математике 3 класс Волкова проверочные работы Умножение и деление Проверочная работа 2. Вариант 2

\[\boxed{\mathbf{Вариант\ 2.}}\]

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

\[(25 + 15)\ :5 = 5 + 3 = 8\]

\[(32 + 8)\ :4 = 8 + 2 = 10\]

\[(21 + 35)\ :7 = 3 + 5 = 8\]

\[(19 + 5)\ :3 = 24\ :3 = 8\]

\[(25 + 11)\ :6 = 36\ :6 = 6\]

\[(30 + 18)\ :8 = 48\ :8 = 6\]

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

\[1)\ 54\ :3 = (30 + 24)\ :3 =\]

\[= 10 + 8 = 18\]

\[76\ :2 = (60 + 16)\ :2 =\]

\[= 30 + 8 = 38\]

\[2)\ 44\ :4 = 11\]

\[86\ :2 = 43\]

\[63\ :3 = 31\]

\[81\ :3 = 27\]

\[64\ :4 = 16\]

\[78\ :6 = 13\]

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

\[1)\ 70\ :5 = 14\]

\[84\ :6 = 14\]

\[2)\ 65\ :13 = 5\]

\[5 \cdot 13 = 65\]

\[96\ :24 = 4\]

\[4 \cdot 24 = 96\]

\[90\ :18 = 5\]

\[5 \cdot 18 = 90\]

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

\[15 \cdot 5 = 75\]

\[75\ :15 = 5\]

\[24 \cdot 3 = 72\]

\[72\ :3 = 24\]

\[39 \cdot 2 = 78\]

\[78\ :39 = 2\]