\[Страница\ 69\]
\[\boxed{\mathbf{120.}}\]
\[Уменьшаемое\ увеличивается\ \]
\[на\ 10:\]
\[22 - 7 = 15\]
\[32 - 7 = 25\]
\[42 - 7 = 35\]
\[52 - 7 = 45\]
\[62 - 7 = 55\]
\[Уменьшаемое\ становится\ на\ \]
\[20\ меньше:\]
\[93 - 4 = 89\]
\[73 - 4 = 69\]
\[53 - 4 = 49\]
\[33 - 4 = 29\]
\[13 - 4 = 9\]
\[Первое\ слагаемое\]
\[\ увеличивается\ на\ 10:\]
\[28 + 9 = 37\]
\[38 + 9 = 47\]
\[48 + 9 = 57\]
\[58 + 9 = 67\]
\[68 + 9 = 77\]
\[\boxed{\mathbf{121.}}\]
\[1)\]
\[k\] | \[13\] | \[25\] | \[34\] | \[81\] | \[65\] | \[42\] |
---|---|---|---|---|---|---|
\[k - 7\] | \[6\] | \[18\] | \[27\] | \[74\] | \[58\] | \[35\] |
\[2)\ 18 + k;\]
\[k = 2;k = 10;k = 20;k = 9.\ \]
\[\boxed{\mathbf{122.}}\]
\[2\ м = 20\ дм > 7\ дм\]
\[3\ дм = 30\ см > 13\ см\]
\[8\ дм = 80\ см > 8\ см\]
\[3\ дм\ 5\ см = 35\ см > 33\ см\]
\[9\ м = 900\ см > 90\ см\]
\[4\ дм\ 4\ см = 44\ см > 40\ см\]