choose you brain exercise!

Brain Warm-Up

100

7.26 - 2.1 = ...

5.16

200

18.81 - 2.4 = ...

16.41

300

75.6 - 2.4 = ...

73.2

Brain Power

100

9.12 - 3.41 = ...

5.71

200

62.74 - 19.9 = ...

42.84

300

9.48 - 1.81 = ...

7.67 

400

27.4 - 9.8 = ...

17.6

500

19.4 - 2.6 = ...

16.8

Brain Boss

100

14 - 8.6 = ...

5.4

200

26 - 8.9 = ...

17.1

300

62.7 - 19.92 = ...

42.78

400

25.1 - 2.37 = ...

22.73