\[\boxed{\mathbf{Стр.\ 36.\ }еуроки - ответы\ на\ пятёрку}\]
\[\boxed{\mathbf{26.}}\]
\[900\] | \[800\] | \[100\] | \[600\] | \[500\] | \[700\] | \[400\] | |
---|---|---|---|---|---|---|---|
\[\ :10\] | \[90\] | \[80\] | \[10\] | \[60\] | \[50\] | \[70\] | \[40\] |
\[:100\] | \[9\] | \[8\] | \[1\] | \[6\] | \[5\] | \[7\] | \[4\] |
\[\boxed{\mathbf{27.}}\]
\[1)\ 350 = 35\ дес.\]
\[2)\ 7\ сот.\ = 700\ ед.\]
\[3)\ 900 = 9\ сот.\]
\[4)\ 680\ :10 = 68\]
\[5)\ 7\ дм^{2} = 700\ см^{2}\]
\[6)\ 3\ м = 300\ см\]
\[7)\ 900 = 90\ дес.\]
\[\boxed{\mathbf{28.}}\]
\[(54\ :6 + 34) \cdot 2 - 56 =\]
\[= 43 \cdot 2 - 56 = 86 - 56 = 30\]
\[(77\ :7 + 19)\ :6 \cdot 17 =\]
\[= 30\ :6 \cdot 17 = 5 \cdot 17 = 85\]
\[8 \cdot 4 \cdot 3\ :3 + 18 = 32 + 18 =\]
\[= 50\]
\[(14 \cdot 5 - 19)\ :17 \cdot 16 =\]
\[= 51\ :17 \cdot 16 = 3 \cdot 16 = 48\]