Решебник по математике 5 класс Алышева Тысяча Задание 172

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\[200 + 300 = 500\]

\[500 - 200 = 300\]

\[500 - 300 = 200\]

\[400 + 200 = 600\]

\[600 - 200 = 400\]

\[600 - 400 = 200\]

\[300 + 500 = 800\]

\[800 - 300 = 500\]

\[800 - 500 = 300\]

\[600 + 300 = 900\]

\[900 - 600 = 300\]

\[900 - 300 = 600\]

\[500 + 200 = 700\]

\[700 - 200 = 500\]

\[700 - 500 = 200\]

\[300 + 400 = 700\]

\[700 - 300 = 400\]

\[700 - 400 = 300\]

\[700 + 200 = 900\]

\[900 - 200 = 700\]

\[900 - 700 = 200\]

\[600 + 400 = 1000\]

\[1000 - 600 = 400\]

\[1000 - 400 = 600\]

\[200 + 800 = 1000\]

\[1000 - 200 = 800\]

\[1000 - 800 = 200\]