CASIO FX 991(ES vs CW vs EX)||Speed test..

Hey guys, In this video we let our calculators do the same math and see which one of them can do it faster. We found that CASIO FX 991-cw was able to do that fastest(10.23s)and sequentially CASIO FX 991-EX(33.08s) and CASIO FX 991-ES (50.06s) Hope you liked the video. Make sure to like and subscribe to my channel, Thanks you..