Since \(1\text{ cm}=10\text{ mm}\), then \(1\text{ cm}^2=100\text{ mm}^2\).

So multiply by \(100\).

\(8\times100=800\).

Answer: \(800\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(0.75\times100=75\).

Answer: \(75\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), convert back by dividing by \(100\).

\(600\div100=6\).

Answer: \(6\text{ cm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(45\div100=0.45\).

Answer: \(0.45\text{ cm}^2\).

Since \(1\text{ m}=100\text{ cm}\), then \(1\text{ m}^2=10000\text{ cm}^2\).

So multiply by \(10000\).

\(3\times10000=30000\).

Answer: \(30000\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(8.1\times10000=81000\).

Answer: \(81000\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(70000\div10000=7\).

Answer: \(7\text{ m}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(780\div10000=0.078\).

Answer: \(0.078\text{ m}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(12\times100=1200\).

Answer: \(1200\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(2.4\times100=240\).

Answer: \(240\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(250\div100=2.5\).

Answer: \(2.5\text{ cm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(8\div100=0.08\).

Answer: \(0.08\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(5\times10000=50000\).

Answer: \(50000\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(0.4\times10000=4000\).

Answer: \(4000\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(25000\div10000=2.5\).

Answer: \(2.5\text{ m}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(150\div10000=0.015\).

Answer: \(0.015\text{ m}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(9\times100=900\).

Answer: \(900\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(1.6\times100=160\).

Answer: \(160\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(320\div100=3.2\).

Answer: \(3.2\text{ cm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(95\div100=0.95\).

Answer: \(0.95\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(12\times10000=120000\).

Answer: \(120000\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(0.09\times10000=900\).

Answer: \(900\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(42000\div10000=4.2\).

Answer: \(4.2\text{ m}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(56\div10000=0.0056\).

Answer: \(0.0056\text{ m}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(14\times100=1400\).

Answer: \(1400\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), multiply by \(100\).

\(0.32\times100=32\).

Answer: \(32\text{ mm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(710\div100=7.1\).

Answer: \(7.1\text{ cm}^2\).

Since \(1\text{ cm}^2=100\text{ mm}^2\), divide by \(100\).

\(6\div100=0.06\).

Answer: \(0.06\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), multiply by \(10000\).

\(1.25\times10000=12500\).

Answer: \(12500\text{ cm}^2\).

Since \(1\text{ m}^2=10000\text{ cm}^2\), divide by \(10000\).

\(9600\div10000=0.96\).

Answer: \(0.96\text{ m}^2\).