2.2 oppervlaktematen omrekenen

• Rekenen
• Middelbare school
• havo
• Leerjaar 1

Units of Area

Previous lesson

I can convert units of area

Oppervlaktematen

hm² = ha = hectare

dam² = are

m² = ca = centiare

Metric System:  Area

What does dm² mean?

1. squared decimeter
2. squared decameter
3. squared centimeter
4. squared millimeter

What does dam2 mean?

1. squared decameter
2. squared decimeter
3. squared centimeter
4. squared millimeter

Hoeveel meter is 8 cm?
(8 cm = . . . m)

How many cm² is 8 squared meter ?

(8 m² = . . . cm²)

1. 800 cm^2
2. 80.000 cm^2
3. 0,08 cm^2
4. 8 cm^2

Hoeveel dm is 0,33 dam?

How many dm² is 0,33 dam²?

1. 3,3 dm^2
2. 0,0033 dm^2
3. 33 dm^2
4. 3.300 dm^2

900 dm = . . . dam

900 dm² =  . . .  dam²

1. 90.000
2. 0,09
3. 9,0
4. 0,9

Drag the units from 

large (left ) to smal (right)

hm2

km2

dam2

m2

dm2

cm2

mm2

Drag the answers to the right spot

2 hm²

0,2 km²

2 km²

2.000 cm²

20 m²

2.000 dm²

200000 m²

2.000.000 m²

0,2 m²

2.000.000 dm²

200.000 cm²

0,2 dam²

Hectare, are en (centiare)

Units of area

safdsda



8 km² = 80.000 are
from km² to are = 2 steps to the right
so 8 x 100 x 100 = 80.000

Calculate the area of the figure:

divide the figure into rectangles

Calculate the area of the figure:

add areas, subtract them later

Calculate the area of the figure. (dimensions are in cm)

Homework

28,29,30,L5

Ezelsbruggetje

lengtematen

Oppervlaktematen omrekenen