\[\boxed{\mathbf{Стр.\ 5.\ }еуроки - ответы\ на\ пятёрку}\]
\[\boxed{\mathbf{8.}}\]
\[8 \cdot 5 = 20 \cdot 2\]
\[5 \cdot 6 = 60\ :2\]
\[100\ :10 = 2 \cdot 5\]
\[5 \cdot 4 = 80\ :4\]
\[60\ :30 = 40\ :20\]
\[\boxed{\mathbf{9.}}\]
\[Запишите\ только\ ответы:\]
\[69 + 13 = 82\]
\[67 - 39 = 28\]
\[83 - 27 = 56\]
\[58 + 39 = 97\]
\[42 + 49 = 91\]
\[Проверка:\]
\[\boxed{\mathbf{10.}}\]
\[\boxed{\mathbf{11.}}\]
\[1)\ y = 3:\]
\(3 \cdot 3 = 9 \cdot 2 = 18\)
\[2)\ y = 5:\]
\[5 \cdot 3 = 15 \cdot 2 = 30\]
\[3)\ y = 8:\]
\[8 \cdot 3 = 24\ :4 = 6\]
\[4)\ y = 9:\]
\[9 \cdot 3 = 27 \cdot 2 = 54\]
\[5)\ y = 7:\]
\[7 \cdot 3 = 21 \cdot 2 = 42\]
\[6)\ y = 11:\]
\[11 \cdot 3 = 33 \cdot 2 = 66\]
\[7)\ y = 12:\]
\[12 \cdot 3 = 36\ :4 = 9\]
\[8)\ y = 13:\]
\[13 \cdot 3 = 39 \cdot 2 = 78\]
\[y\] | \[3\] | \[5\] | \[8\] | \[9\] | \[7\] | \[11\] | \[12\] | \[13\] |
---|---|---|---|---|---|---|---|---|
\[z\] | \[18\] | \[30\] | \[6\] | \[54\] | \[42\] | \[66\] | \[9\] | \[78\] |