\[\boxed{\mathbf{1.}}\]
\[\textbf{а)} - (правильно - меньше);\]
\[\textbf{б)}\ не\ высказывание;\]
\[\textbf{в)} + ;\]
\[\textbf{г)} - (правильно - на\ сколько);\]
\[\textbf{д)} +\]
\[\textbf{е)} -\]
\[(правильно - больше\ разность).\]
\[\boxed{\mathbf{2.}}\]
\[\textbf{а)}\ 3 - x\ (конфет) - осталось\ \]
\[у\ Васи.\]
\[x = \left\{ 1;2;3 \right\}.\]
\[\textbf{б)}\ 12\ :m\ (кг) - яблок\ в\ \]
\[каждой\ коробке.\]
\[m = \left\{ 2;3;4;6 \right\}.\]
\[\boxed{\mathbf{3.}}\]
\[a\] | \[15\] | \[60\] | \[290\] | \[4200\] | \[8005\] |
---|---|---|---|---|---|
\[a \cdot 7\] | \[105\] | \[420\] | \[2030\] | \[29\ 400\] | \[56\ 035\] |
\[a\ :5\] | \[3\] | \[12\] | \[58\] | \[840\] | \[1601\] |
\[a + 97\] | \[112\] | \[157\] | \[387\] | \[4297\] | \[8102\] |
\[a - 15\] | \[0\] | \[45\] | \[275\] | \[4185\] | \[7990\] |
\[\boxed{\mathbf{4.}}\]
\[x + 3 = n\]
\[x = n - 3\]
\[x\ :a = b\]
\[x = b \cdot a\]
\[48\ :x = b\]
\[x = 48\ :b\]
\[b - x = k\]
\[x = b - k\]
\[5 \cdot x = c\]
\[x = c\ :5\]
\[x - t = m\]
\[x = m + t\]
\[\boxed{\mathbf{5.}}\]
\[a\ :28 > a\ :82\]
\[784 - b < 794 - b\]
\[c \cdot 15 = 18 \cdot c - 3 \cdot c\]
\[5 \cdot d + d < 5 \cdot (d + d)\]