crwdns2934241:0crwdne2934241:0 garvit_shrestha

crwdns2934249:0crwdne2934249:0:

I have a problem with my calculator except that its from a different company and a lot older. Its the Casio fx-991W and i found it just now and it ain't working and when i checked the back, it had no batteries but there is a way, we can turn it on even without batteries. Would anyone help me on this one?

crwdns2915684:0crwdne2915684:0:

open