\[\boxed{\mathbf{Страница}\mathbf{\ 5}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\boxed{\mathbf{8}\mathbf{.}\mathbf{\ }}\]
\[Слагаемое\] | \[170\] | \[60\] | \[160\] | \[380\] | \[90\] | \[310\] | \[250\] |
---|---|---|---|---|---|---|---|
\[Слагаемое\] | \[90\] | \[450\] | \[640\] | \[450\] | \[690\] | \[530\] | \[310\] |
\[Сумма\] | \[260\] | \[510\] | \[800\] | \[830\] | \[780\] | \[840\] | \[560\] |
\[\boxed{\mathbf{9}\mathbf{.}\mathbf{\ }}\]
\[1)\ 75\ :5 = 15\ (кг) - печенья\ в\ \]
\[одной\ коробке.\]
\[2)\ 90\ :15 = 6\ (коробок) -\]
\[понадобится\ на\ 90\ кг\ печенья.\]
\[3)\ 150\ :15 = 10\ (коробок) -\]
\[понадобится\ на\ 150\ кг\ печенья.\]
\[4)\ 300\ :15 = 20\ (коробок) -\]
\[понадобится\ на\ 300\ кг\ печенья.\]
\[Ответ:6\ коробок;\ \ 10\ коробок;\ \ \]
\[20\ коробок.\]
\[\boxed{\mathbf{10}\mathbf{.}\mathbf{\ }}\]
\[x\] | \[102\] | \[603\] | \[501\] | \[704\] | \[806\] | \[905\] |
---|---|---|---|---|---|---|
\[x - 17\] | \[85\] | \[586\] | \[484\] | \[687\] | \[789\] | \[888\] |
\[x + 17\] | \[119\] | \[620\] | \[518\] | \[721\] | \[823\] | \[922\] |
\[\boxed{\mathbf{11}\mathbf{.}\mathbf{\ }}\]
\[\boxed{\mathbf{12}\mathbf{.}\mathbf{\ }}\]
\[17 \cdot 3 = 51 \cdot 3 = 153 + 7 =\]
\[= 160\ :40 = 4 \cdot 31 = 124\]