\[\boxed{\mathbf{Стр.\ 37.\ }еуроки - ответы\ на\ пятёрку}\]
\[\boxed{\mathbf{29.}}\]
\[1)\ 28 \cdot 3 = 84\ (м) - ткани\ \]
\[купили.\]
\[2)\ 84\ :2 = 42\ (м) - ткани\ \]
\[пошло\ на\ шторы.\]
\[3)\ 42\ :14 = 3\ (м) - ткани\ \]
\[пошло\ на\ каждый\ комплект\ \]
\[штор.\]
\[Ответ:3\ м.\]
\[\boxed{\mathbf{30.}}\]
\[465 = 400 + 60 + 5\]
\[928 = 900 + 20 + 8\]
\[735 = 700 + 30 + 5\]
\[307 = 300 + 7\]
\[540 = 500 + 40\]
\[920 = 900 + 20\]
\[\boxed{\mathbf{31.}}\]
\[a\] | \[15\] | \[18\] | \[27\] | \[56\] | \[32\] | \[36\] | \[64\] | \[72\] | \[14\] | \[25\] |
---|---|---|---|---|---|---|---|---|---|---|
\[x\] | \[3\] | \[6\] | \[9\] | \[7\] | \[8\] | \[9\] | \[8\] | \[8\] | \[7\] | \[5\] |
\[a - 2 \cdot x\] | \[9\] | \[6\] | \[9\] | \[42\] | \[16\] | \[18\] | \[48\] | \[56\] | \[0\] | \[15\] |
\[a + a\ :x\] | \[20\] | \[21\] | \[30\] | \[64\] | \[36\] | \[40\] | \[72\] | \[81\] | \[14\] | \[30\] |
\[x \cdot (a - 2)\] | \[39\] | \[96\] | \[225\] | \[378\] | \[240\] | \[306\] | \[496\] | \[560\] | \[84\] | \[115\] |
\[\boxed{\mathbf{32.}}\]