400+300=?
700
700-400
300
20x4=?
60
30 รท 5=?
6
45-_=30
15
123+78=?
201
560-36=?
524
548x334
183032
555+89
644
465-56=?
409
269+44=?
313
3323+92=?
3415
Press F11 Select menu option View > Enter Fullscreen for full-screen mode