\[\boxed{\text{318.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[c\] | \[90\] | \[90\] | \[140\] | \[140\] | \[1\ 400\] | \[1\ 400\] |
---|---|---|---|---|---|---|
\[d\] | \[40\] | \[70\] | \[70\] | \[80\] | \[800\] | \[1\ 400\] |
\[c + d\] | \[130\] | \[160\] | \[210\] | \[220\] | \[2\ 200\] | \[2\ 800\] |
\[c - d\] | \[50\] | \[20\] | \[70\] | \[60\] | \[600\] | \[0\] |
\[90 + 40 = 130;\]
\[90 - 40 = 50;\]
\[160 - 70 = 90;\]
\[90 - 70 = 20;\]
\[140 - 70 = 70;\]
\[140 + 70 = 210;\]
\[220 - 80 = 140;\]
\[140 + 80 = 220;\]
\[1\ 400 - 600 = 800;\]
\[1\ 400 + 800 = 2\ 200;\]
\[2\ 800 - 1\ 400 = 1\ 400.\ \]