1 / 0.5 / 2

1.0 * 0.5 * 4 

0.3 * 2 * 10 

0.2 * 0.5 * 2

4.2 + 0.8 - 1.2 - 0.8

3.0 - 0.5 + 1.0 - 0.5

2.5 + 1.5 - 1.0 + 0.5

1.0 - 0.1 - 0.2 - 0.3

0.1 + 0.2 + 0.3 + 0.4

0.5 * 1000

4.8 / 100

1.2 * 100

3.7 / 10

2.5 * 10

10 / (2.5 - 0.5)

5 * (0.2 + 0.3)

(1.5 + 2.5) / 2

(4.2 / 2) - 1

2 + (3.5 * 2)

2.5 + 0.08 * 4 - 0.12