Solve 90*90div2-60*60div2

$$90 \times 90 \div 2-60 \times 60 \div 2$$

Evaluate

$$2250$$

Solution Steps

Multiply 90 and 90 to get 8100.

$$\frac{8100}{2}-\frac{60\times 60}{2}$$

Divide 8100 by 2 to get 4050.

$$4050-\frac{60\times 60}{2}$$

Multiply 60 and 60 to get 3600.

$$4050-\frac{3600}{2}$$

Divide 3600 by 2 to get 1800.

$$4050-1800$$

Subtract 1800 from 4050 to get 2250.

$$2250$$

Factor

$$2\times 3^{2}\times 5^{3}$$