Đáp án:
Câu 1:
\[\begin{array}{l}
{20^o}C = {68^o}F\\
{50^o}C = {122^o}F\\
{100^o}C = {212^o}F\\
{0^o}C = {32^o}F\\
- {5^o}C = {23^o}F\\
- {25^o}C = - {13^o}F
\end{array}\]
Câu 2:
\[\begin{array}{l}
{25^o}F = - 3,{9^o}C\\
{80^o}F = 26,{7^o}C\\
{137^o}F = 58,{3^o}C\\
{0^o}F = - 17,{8^o}C\\
- {50^o}F = - 45,{6^o}C\\
- {150^o}F = - 101,{1^o}C
\end{array}\]