repede va rog!
Am nevoie maine pana la 6-7
Răspunsuri la întrebare
a) 897*255+897*745= 897* (255+745)
=897*1000
=897000
b)28*485+29*485+43*485= 485 *(28+29+43)
=485*100
= 485
c) 69*303-67*303-303= 303* (69-67-1)
= 303*1
=303
d) 132*133-133*131 = 133*(132-131)
=132*1
=132
f) 2005*2004-2004*3-4*2002= 2004* (2005-3) -4*2002
=2004*2002-4*2002
=2002* (2004-4)
=2002*2000=4.004.000