\[Стр.\ 26.\]
\[\boxed{\mathbf{8.}}\]
\[60\ :4 + 72\ :8 = 15 + 9 = 24\]
\[Ответ:24.\]
\[\boxed{\mathbf{9.}}\]
\[96\ :8 \cdot 7 - 84\ :4 \cdot 3 =\]
\[= 12 \cdot 7 - 21 \cdot 3 = 84 - 63 =\]
\[= 21\]
\[Ответ:21.\]
\[\boxed{\mathbf{10.}}\]
\[a\] | \[9\] | \[100\] | \[7\] | \[1\] | \[5\] |
---|---|---|---|---|---|
\[b\] | \[8\] | \[10\] | \[3\] | \[0\] | \[5\] |
\[3a + 4b\] | \[59\] | \[340\] | \[33\] | \[3\] | \[35\] |
\[12a - 7b\] | \[52\] | \[1130\] | \[63\] | \[12\] | \[25\] |