Area, volume and surface area

Converting between units for area

Name: ______________________________Date: ______________Score: ______ / 20

1.
Convert 24 cm² into square millimetres.
mm²
2.
Convert 80000 cm² into square metres.
m²
3.
How many square centimetres are there in 1 m²?
cm²
4.
Convert 0.4 cm² into square millimetres.
mm²
5.
To convert square millimetres into square centimetres, what do you do?
1. Adivide by 100
2. Bmultiply by 100
3. Cdivide by 10
6.
Sort each conversion statement.
Write each item’s group (True / False):
- 1 cm² = 100 mm²
- 1 m² = 10 000 cm²
- 1 cm² = 10 mm²
- 1 m² = 100 cm²
7.
Convert 1400 mm² into square centimetres.
cm²
8.
What units would you use for the area of a pinhead?
1. Acm²
2. Bmm²
3. Cm²
9.
Convert 19 cm² into square millimetres.
mm²
10.
Convert 29 m² into square centimetres.
cm²
11.
Convert 0.8 cm² into square millimetres.
mm²
12.
Convert 18 cm² into square millimetres.
mm²
13.
Convert 190000 cm² into square metres.
m²
14.
Convert 16 cm² into square millimetres.
mm²
15.
Convert 4 m² into square centimetres.
cm²
16.
Convert 0.5 cm² into square millimetres.
mm²
17.
Convert 14 cm² into square millimetres.
mm²
18.
Convert 230000 cm² into square metres.
m²
19.
Convert 0.3 cm² into square millimetres.
mm²
20.
Convert 400 mm² into square centimetres.
cm²

Answer key

Area, volume and surface area — Converting between units for area

1.2400 mm²
2.8 m²
3.10000 cm²
4.40 mm²
5.A. divide by 100
6.1 cm² = 100 mm² = True; 1 m² = 10 000 cm² = True; 1 cm² = 10 mm² = False; 1 m² = 100 cm² = False
7.14 cm²
8.B. mm²
9.1900 mm²
10.290000 cm²
11.80 mm²
12.1800 mm²
13.19 m²
14.1600 mm²
15.40000 cm²
16.50 mm²
17.1400 mm²
18.23 m²
19.30 mm²
20.4 cm²