B Nirmala Shastry Solutions for Exercise 2: EXERCISE 3.2

Write an integer to represent the following situation.

Decrease in rainfall by $10 \mathrm{mm}$.

Write an integer to represent the following situation.

$45 \mathrm{km}$ North.

Write an integer to represent the following situation.

Going $1 \mathrm{km}$ towards the west.

Write an integer to represent the following situation.

$4°C$ below the freezing point.

Write an integer to represent the following situation.

Going $300 \mathrm{m}$ below the ground level into a mine.

Write an integer to represent the following situation.

An aeroplane flying at a height of $1800 \mathrm{m}$ above the sea level.

Write the opposite of $-234$

Find whether the following statement is true or false. If the statement is false correct it.

Zero is a positive integer.