\[\boxed{\mathbf{Вариант\ 1.}}\]
\[\boxed{\mathbf{1.}}\]
\[4 + 7 = 11\]
\[9 + 3 = 12\]
\[13 - 4 = 9\]
\[17 - 9 = 8\]
\[16 - 9 = 7\]
\[12 - 5 = 7\]
\[15 - 8 = 7\]
\[13 - 6 = 7\]
\[8 + 6 = 14\]
\[9 + 7 = 16\]
\[7 + 6 = 13\]
\[11 - 5 = 6\]
\[5 + 9 = 14\]
\[14 - 7 = 7\]
\[3 + 8 = 11\]
\[9 + 4 = 13\]
\[\boxed{\mathbf{2.}}\]
\[1)\ 18 + 4 = 22\]
\[89 - 6 = 83\]
\[52 - 9 = 43\]
\[30 - 7 = 23\]
\[43 - 20 = 23\]
\[31 + 40 = 71\]
\[2)\]
\[\boxed{\mathbf{3.}}\]
\[78\ мм = 7\ см\ 8\ мм\]
\[5\ дм = 50\ см\]
\[\boxed{\mathbf{4.}}\]
\[a\] | \[3\] | \[15\] | \[20\] | \[35\] |
---|---|---|---|---|
\[36 - a\] | \[33\] | \[21\] | \[16\] | \[1\] |
\[\boxed{\mathbf{5.}}\]
\[39 - 5 = 34\]
\[43 + 6 = 49\]