1.25 + 0.3 

0.15 + 0.2

3.7 + 2.1 

2.3 + 1.2

1.1 + 0.4

0.8 + 0.1

0.2 + 0.5

100 / 2.5

12.5 * 2

45.8 - 12.8

15.3 + 24.7

5 + 1 / (2.5/5)

(1.4*2)/0.7 + 10.4

10-(2.1+0.9) * 2.5

(4.6-3.2)*5/0.1

3.2/0.2 * 1.2 + 1.8

7.2 / 0.8 + 1.5 * 2

3.2 * (4.5 - 2.5)

(2.5 + 1.5) / 0.4

10.8 / 2 - 1.5