!digits 2
!scientific 

1 day = ?
1 km = ?
50 g * 50 kg = ?
1 m * 1 m = ?
1000 m * 1000 m = ?
10 m * 10 m = ?
1 km * 1 km = ?
1 m * 1 km = ?
1 m * 1 km * 30 mm = ?
1 + 9 = ?
1 * 10^5 = ?