\[\boxed{\mathbf{Стр.\ 30.\ }еуроки - ответы\ на\ пятёрку}\]
\[\boxed{\mathbf{76.}}\]
\[28 = 1 \cdot 28\]
\[28 = 28\ :1\]
\[Ответ:числа\ 28\ и\ 1.\]
\[\boxed{\mathbf{77.}}\]
\[1)\ 36 \cdot 2 = 72\]
\[72\ :2 = 36\]
\[19 \cdot 5 = 95\]
\[95\ :19 = 5\]
\[26 \cdot 3 = 78\]
\[78\ :26 = 3\]
\[2)\ 70\ :5 = 14\]
\[14 \cdot 5 = 70\]
\[90\ :18 = 5\]
\[18 \cdot 5 = 90\]
\[63\ :21 = 3\]
\[21 \cdot 3 = 63\]
\[\boxed{\mathbf{78.}}\]
\[Самое\ большое\ число\ до\ 33,\ \]
\[которое\ делится\ на\]
\[4:\ \ \ 32.\]
\[5:\ \ 30.\]
\[6:\ \ 30.\]
\[7:\ \ 28.\]
\[8:\ \ 32.\]
\[9:\ \ 27.\]
\[\boxed{\mathbf{79.}}\]
\[a\] | \[12\] | \[48\] | \[36\] | \[72\] | \[60\] | \[24\] | \[96\] |
---|---|---|---|---|---|---|---|
\[a\ :12\] | \[1\] | \[4\] | \[3\] | \[6\] | \[5\] | \[2\] | \[8\] |
\[a\ :4\] | \[3\] | \[12\] | \[9\] | \[18\] | \[15\] | \[6\] | \[24\] |