\[Страница\ 24.\]
\[\boxed{\mathbf{6.}}\]
\[Слагаемое\] | \[9\] | \[8\] | \[3\] | \[0\] | \[0\] | \[15\] | \[20\] |
---|---|---|---|---|---|---|---|
\[Слагаемое\] | \[8\] | \[50\] | \[9\] | \[16\] | \[20\] | \[30\] | \[9\] |
\[Сумма\] | \[17\] | \[58\] | \[12\] | \[16\] | \[20\] | \[45\] | \[29\] |
\[\boxed{\mathbf{7.}}\]
\[47 + 6 = 53\]
\[32 - 4 = 28\]
\[50 + 12 = 62\]
\[70 - 9 = 61\]
\[38 - 4 = 34\]
\[68 - 4 = 64\]
\[\boxed{\mathbf{8.}}\]
\[3 + (3 + 4) = 3 + 7 =\]
\[= 10\ (машин) - всего\ на\]
\[\ стоянке.\]
\[Ответ:10\ машин.\]
\[\boxed{\mathbf{9.}}\]
\[7 + 7 + 7 + 7 = 7 \cdot 4\]
\[3 \cdot 5 = 3 + 3 + 3 + 3 + 3\]
\[6 \cdot 3 = 6 + 6 + 6\]
\[34 + 34 = 34 \cdot 2\]