Easy
Medium
Hard
Insane
IMPOSSIBLE
200

1 + 1 = ?

2

200

3 x 4 = ?

12

200

6 x (7 + 1) = ?

48

200

1,000 x 1,000 = ?

1,000,000

200

1,000,000 x 1,000,000 = ?

1e+12

400

2 + 2 = ?

4

400

6 x 7 = ?

42

400

500 x 2 = ?

1,000

400

200 x 2 = ?

400

400

12 x 4,000,000 = ?

48,000,000

600

6 + 6 = ?

12

600

10 x 10 = ?

100

600

80 x 8 = ?

640

600

What's the square root of -1?

i

600

What's the number for e?

2.71828182846

800

24 + 24 = ?

48

800

8 x 8 = ?

64

800

1,000 x 1 = ?

1,000

800

6 x 10 = I. What is the number for I?

60

800

4,000,000 x 4,000,000 = ?

1.6e+13

1000

100 + 100 = ?

200

1000

300 x 2 = ?

600

1000

1,000 x 2 = ?

2,000

1000

1,000 x 10 = ?

10,000

1000

1 / 0 = ?

Infinity