a fost răspuns

1)Efectuati dand factor comin

a)38*37+38*63=

b)86*53-76*53=

c)47*99+47=

d)2012*2011+2012*2013-2012*4024=

     

 

 

 

Răspuns :

38(37+63) =... 53(86-76)=... 2*47+99=... 2012(2011+2013-2024)=...
Mihaelapask
a) 38 * (37 + 63) = 38 * 100 = 3800
b) 53 * (86 - 76) = 53 * 10 = 530
c) 47 * (99 + 1) = 47 * 100 = 4700
d) 2012 * (2011 + 2013 - 4024) = 2012 * (4024 - 4024)  = 2012 * 1 = 2012

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