Решебник по математике 6 класс Ерина Никольский рабочая тетрадь Часть 1, 2 Часть 1 | Страница 51

\[\mathbf{Страница\ 51.}\]

\[\boxed{\mathbf{5.}}\]

\[\textbf{а)}\ 12 - ( - 4) = 16\]

\[14 - ( - 18) = 32\]

\[- 32 - ( - 19) = - 13\]

\[\textbf{б)}\ 8 - 10 = - 2\]

\[0 - ( - 81) = 81\]

\[0 - 15 = - 15\]

\[\textbf{в)}\ 8 - ( - 8) = 16\]

\[- 5 - 7 = - 12\]

\[- 6 - ( - 3) = - 3\]

\[\textbf{г)} - 7 - ( - 7) = 0\]

\[- 2 - 0 = - 2\]

\[- 4 - 1 = - 5\]

\[\textbf{д)}\ 26 - ( - 13) = 39\]

\[- 144 - ( - 39) = - 105\]

\[- 200 - 4 = - 214\]

\[\textbf{е)} - 17 - 15 = - 32\]

\[- 32 - ( - 40) = 8\]

\[45 - 64 = - 19\]

\[\boxed{\mathbf{6.}}\]

\[\textbf{а)} - 9 + 20 = 11\]

\[9 - 14 = - 5\]

\[- 9 + 14 = 5\]

\[\textbf{б)} - 9 - 2 = - 11\]

\[- 8 + 24 = 16\]

\[- 7 - 13 = - 20\]

\[\textbf{в)} - 8 - 7 = - 15\]

\[9 - 7 = 2\]

\[- 9 - ( - 7) = - 2\]

\[\boxed{\mathbf{7.}}\]

\[- 5 + 8 + ( - 3) + 12 =\]

\[= 20 + ( - 8) = 12\]

\[- 6 + 9 + ( - 11) + 10 =\]

\[= 19 + ( - 17) = 2\]

\[- 7 + 6 + ( - 2) + 3 =\]

\[= 9 + ( - 9) = 0\]

\[11 + ( - 6) + 9 + ( - 14) =\]

\[= 20 + ( - 20) = 0\]

\[- 14 + 9 + ( - 5) + 11 =\]

\[= 20 + ( - 19) = 1\]

\[- 10 + 6 + ( - 8) + 14 =\]

\[= 20 + ( - 18) = 2\]

\[10 + ( - 15) + 11 + ( - 12) =\]

\[= 21 + ( - 27) = - 6\]

\[\boxed{\mathbf{8.}}\]

\[\textbf{а)}\ (58 - 24) - 65 =\]

\[= 34 - 65 = - 31\]

\[\textbf{б)} - 70 + (32 + 19) =\]

\[= - 70 + 51 = - 19\]

\[\textbf{в)} - 7 - ( - 9 - 40) =\]

\[= - 7 - ( - 49) = - 7 + 49 = 42\]

\[\textbf{г)}\ 8 - ( - 9 + 5) =\]

\[= 8 - ( - 2) = 10\]

\[\textbf{д)}\ ( - 13 + 50) - 2 =\]

\[= 37 - 2 = 35\]

\[\textbf{е)}\ (17 - 35) + 40 =\]

\[= - 18 + 40 = 22\]

\[\textbf{ж)}\ ( - 6 - 7) + 2 =\]

\[= - 13 + 2 = - 11\]

\[\textbf{з)} - 5 - ( - 7 - 6) =\]

\[= - 5 - ( - 13) = 8\]

\[\boxed{\mathbf{9.}}\]

\[a - b:\]

\[7;\ - 15;18;1;\ - 12;18;\ \]

\[- 5;13;13;\ - 6\]