(a)   – smaller unit of length. Example: The pencil is 15 cm long.

(a)   – very small unit of length. Example: The paper is 1 mm thick.

(a)   – long distances. Example: The town is 5 km away.

(a)   – light weight. Example: The apple weighs 100 gr.

(a)   – heavier weight. Example: The bag is 8 kg.

(a)   – liquid volume. Example: A milk bottle has 2 l

• (a)   – small liquid volume. Example: A spoon has 5 mm

(a)   – very heavy weight. Example: A car can weigh 2 t

(a)   – liquid volume. Example: A milk bottle has 2 l

(a)   – small liquid volume. Example: A spoon has 5 ml.

(a)   – volume of small objects. Example: The box is 200 cm³.

Cubic metre (m³) – volume of a truck of sand . Example: The box is 20m³.

(a)  

(a)   – area of the class surface. Example: The classroom floor is 40 m².

• (a)   – large land areas. Example: The park is 3 km².

(a)   – short time. Example: The 100m race lasts 10 seconds.

(a)   – longer time. Example: The lesson lasted 50 minutes.

(a)   – bigger unit of time. Example: The movie is 2 hours.

(a)   (°C) – temperature. Example: Today is 25°C.

(a)   – power. Example: The fan uses 60 watts.

(a)   (J) – energy. Example: A light bulb uses joules of energy.

(a)   – time measurement. Example: A year has 52 w

(a)   – time measurement. Example: A week has 7 days.

Which unit is used for long distances, like between towns?

(a)  

What unit is used to measure the weight of an apple?

(a)  

A desk is 2 m long and 1 m wide. What is the area?
Formula: Area = length × width

(a)  

A square tile is 30 cm on each side. Find the area.
Formula: Area = side × side

(a)  

A whiteboard is 4 m long and 2 m wide. Find the perimeter.
Formula: Perimeter = 2 × (length + width)

(a)  

A garden bed is a square with sides of 5 m. Find the perimeter.
Formula: Perimeter = 4 × side

(a)  

A triangular sign has sides of 3 m, 4 m, and 5 m. Find the perimeter.
Formula: Perimeter = a + b + c

12 m

(a)  

A cube-shaped box has sides of 2 m. Find the volume.
Formula: Volume = side³

(a)  

A fish tank is 4 m long, 2 m wide, and 1 m high. Find the volume.
Formula: Volume = length × width × height

(a)  

The ​ (a)   almost ​ (b)   which means it takes ​ (c)   ​ (d)   one end to ​ (e)  

• A bottle​ (a)   usually holds ​ (b)   which is enough ​ (c)   glasses for ​ (d)  

​ (a)   outside today is ​ (b)   so it feels ​ (c)   and people ​ (d)   water to ​ (e)  

A small ​ (a)   weighs about ​ (b)   which is ​ (c)   and easy to carry ​ (d)  

The distance from Sydney to Melbourne is around 878 (a)   , so people often travel there by plane or train.

The distance ​ (a)   is around​ (b)   so people often travel ​ (c)   or train.

​ (a)   usually uses about ​ (b)   which helps provide enough ​ (c)   to run ​ (d)  

The school oval is almost 200 metres long, which means it takes a few (a)   (min...) to walk from one end to the other.

• A bottle of soft drink usually holds 1.25 (a)   (litr...) , which is enough to pour several glasses for your friends.

The temperature outside today is 30 (a)   (degre... cels...) , so it feels very hot and people need to drink water to stay cool.

The (a)   (tempe...) outside today is 30 degrees Celsius, so it feels very hot and people need to drink water to stay cool.

A ​ (a)   can weigh more ​ (b)   , which makes it ​ (c)   than an ordinary ​ (d)