Complete: 8 cm2 = ? mm2
80
800
0.8
8
Since \(1\text{ cm}=10\text{ mm}\), then \(1\text{ cm}^2=100\text{ mm}^2\).
So multiply by \(100\).
\(8\times100=800\).
Answer: \(800\text{ mm}^2\).
Complete: 0.75 cm2 = ? mm2
7.5
750
75
0.075
Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).
\(0.75\times100=75\).
Answer: \(75\text{ mm}^2\).
Complete: 600 mm2 = ? cm2
0.6
6
60
6000
Since \(1\text{ cm}^2=100\text{ mm}^2\), convert back by dividing by \(100\).
\(600\div100=6\).
Answer: \(6\text{ cm}^2\).
Complete: 45 mm2 = ? cm2
4.5
0.45
45
0.045
Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).
\(45\div100=0.45\).
Answer: \(0.45\text{ cm}^2\).
Complete: 3 m2 = ? cm2
300
3000
30000
300000
Since \(1\text{ m}=100\text{ cm}\), then \(1\text{ m}^2=10000\text{ cm}^2\).
So multiply by \(10000\).
\(3\times10000=30000\).
Answer: \(30000\text{ cm}^2\).