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МатематикаГДЗ по математике 5 класс Ерина Виленкин рабочая тетрадь Часть 1, 2 Часть 1 | Страница 39
Страница 39
\[Страница\ 39.\]
\[\boxed{\mathbf{2}.}\]
\[\textbf{а)}\ 896 + 1347\]
\[\textbf{б)}\ 2156 - 749\]
\[\textbf{в)}\ 96 \cdot 42\]
\[\textbf{г)}\ 5076\ :12\]
\[\boxed{\mathbf{3}.}\]
\[\textbf{а)}\ b + 340\]
\[\textbf{б)}\ a \cdot x\]
\[\textbf{в)}\ 78\ :c\]
\[\textbf{г)}\ y - b\]
\[\boxed{\mathbf{4}.}\]
| \[a\] | \[36\] | \[100\] | \[52\ 200\] | \[38\ 584\] | \[29\ 458\] | \[80\ 202\] |
|---|---|---|---|---|---|---|
| \[b\] | \[30\] | \[40\] | \[200\] | \[1584\] | \[1458\] | \[80\ 002\] |
| \[c\] | \[2\] | \[30\] | \[900\] | \[2500\] | \[4500\] | \[77\] |
| \[b + c\] | \[32\] | \[70\] | \[1100\] | \[4084\] | \[5958\] | \[80\ 079\] |
| \[a - (b + c)\] | \[4\] | \[30\] | \[51\ 100\] | \[34\ 500\] | \[23\ 500\] | \[123\] |
| \[a - b - c\] | \[4\] | \[30\] | \[51\ 100\] | \[34500\] | \[23\ 500\] | \[123\] |
\[a - (b + c) = a - b - c\]
\[\boxed{\mathbf{5}.}\]
\[9 - y:\]
\[y = 0;1;2;3;4;5;6;7;8;9.\]
\[x - 5:\]
\[x = 6;7;8;\ldots\]
\[2 \cdot a:\]
\[a - любое\ число.\]
\[200 + b:\]
\[b - любое\ число.\]
\[\boxed{\mathbf{6}.}\]
\[81\ :81 = 1\]
\[81\ :9 = 9\]
\[81\ :27 = 3\]
\[81\ :3 = 27\]
\[81\ :1 = 81\]
\[\boxed{\mathbf{7}.}\]
\[500\ :b\]
\[\textbf{а)}\ b = 500;\]
\[\textbf{б)}\ b = 250;\]
\[\textbf{в)}\ b = 100;\]
\[\textbf{г)}\ b = 50;\]
\[\textbf{д)}\ b = 25;\]
\[\textbf{е)}\ b = 10;\]
\[\textbf{ж)}\ b = 5;\]
\[\textbf{з)}\ b = 1.\]
