me right hand control the tank
left hand do the calculations
somemore laptop no have num pad... bery difficult to type the
numbers and symbols
taking a break from numeroid
now playing sushido
sometimes i got prob entering numbers with keyboard oso.
so use mouse.
and i realise i almost always use multiplication oni.
hahaha.
my 九九乘法表 beli zai!
ok, maybe even exceed 9x9.
aiya, my 心算 is quite zai la.
better than many people. hurhur.