Write the successor of the following numbers. 
$19999$

Write the opposites of the following in statement form.

Increase by $5°\mathrm{C}$

Write the opposites of the following in statement form.

$20 \mathrm{km}$ North 

Write the opposites of the following in statement form.

Profit of $₹ 1600$

Look at the above scale to answer the following questions.
Which is warmer: $3°\mathrm{C}$ or $-1°\mathrm{C}$?
 

Look at the above scale to answer the following questions.
Which is colder: $-4°\mathrm{C}$ or $-6°\mathrm{C}$?
 

Look at the above scale to answer the following questions.
Which temperature is lower: $-5°\mathrm{C}$ or $-8°\mathrm{C}$?