Решебник по математике 5 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 35

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\[\textbf{а)}\ 86 - (26 + 46) =\]

\[= 86 - 26 - 46 = 60 - 46 = 14\]

\[\textbf{б)}\ 98 - (28 + 33) =\]

\[= (98 - 28) - 33 = 70 - 33 =\]

\[= 37\]

\[\textbf{в)}\ 116 - (76 + 19) =\]

\[= (116 - 76) - 19 = 40 - 19 =\]

\[= 21\]

\[\textbf{г)}\ 455 - (65 + 18) =\]

\[= (455 - 65) - 18 =\]

\[= 390 - 18 = 372\]

\[\textbf{д)}\ (386 + 139) - 286 =\]

\[= (386 - 286) + 139 =\]

\[= 100 + 139 = 239\]

\[\textbf{е)}\ (519 + 88) - 219 =\]

\[= (519 - 219) + 88 =\]

\[= 300 + 88 = 388\]

\[\textbf{ж)}\ (3408 + 2891) - 791 =\]

\[= 3407 + (2891 - 791) =\]

\[= 3407 + 2100 = 5507\]

\[\textbf{з)}\ (2617 + 389) - 89 =\]

\[= 2617 + (389 - 89) =\]

\[= 2617 + 300 = 2917\]

\[\boxed{\mathbf{11}.}\]

\[Выучите\ примеры\ \]

\[на\ вычитание.\]

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\[14 - 8 = 6\]

\[15 - 9 = 6\]

\[13 - 7 = 6\]

\[11 - 6 = 5\]

\[18 - 9 = 9\]

\[17 - 8 = 9\]

\[16 - 8 = 8\]

\[17 - 9 = 8\]