Measurement

Measurement Mania

In mathematics we are learning about measurement. We are learning to measure in centimeters and decimeters. We are learning to convert cm and dm to meters and also learning to convert metres to kilometres. 

We will be learning about perimeter and area of shapes.

Conversions

cm = centimeter, mm = millimeter, m = meter, dm = decimeter, km = kilometer

1 cm = 10 mm or 0.01 m

1 mm = 0.1 cm

1 m = 100 cm or 1000mm

1 dm = 10 cm or 100 mm

1 km = 1000 m or 100000 cm

perimeter

The distance around a figure 

Example: 

2 cm + 3 cm + 3 cm = 8 cm

The perimeter of this figure is 8 centimeters.

area

The number of square units needed to cover a surface 

Example: 

The area is 9 square units.