ГДЗ по математике 5 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 34

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\[\boxed{\mathbf{4}.}\]

\[265 - (65 + 137) =\]

\[= (265 - 65) - 137 =\]

\[= 200 - 137 = 63\]

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

\[Выучите\ правило.\]

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

\[\textbf{а)}\ 148 - (18 + 19) =\]

\[= (148 - 18) - 19 =\]

\[= 130 - 19 = 111\]

\[\textbf{б)}\ 694 - (17 + 94) =\]

\[= (694 - 94) - 17 = 600 - 17 =\]

\[= 583\]

\[\textbf{в)}\ 379 - (59 + 14) =\]

\[= (379 - 59) - 14 = 320 - 14 =\]

\[= 306\]

\[\textbf{г)}\ 986 - (13 + 86) =\]

\[= (986 - 86) - 13 = 900 - 13 =\]

\[= 887\]

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

\[(394 + 468) - 94 =\]

\[= (394 - 94) + 468 =\]

\[= 300 + 468 = 768\]

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

\[Выучите\ правило.\]

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

\[\textbf{а)}\ (47 + 9) - 7 = (47 - 7) + 9 =\]

\[= 40 + 9 = 49\]

\[\textbf{б)}\ (464 + 359) - 64 =\]

\[= (464 - 64) + 359 =\]

\[= 400 + 359 = 759\]

\[\textbf{в)}\ (444 + 289) - 269 =\]

\[= (289 - 269) + 444 =\]

\[= 20 + 444 = 464\]

\[\textbf{г)}\ (957 + 486) - 847 =\]

\[= (957 - 847) + 486 =\]

\[= 110 + 486 = 596\]

\[\textbf{д)}\ (297 + 568) - 58 =\]

\[= (568 - 58) + 297 =\]

\[= 510 + 297 = 807\]