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Gabicaa12
a fost răspuns

se stie ca x+y=1250 calculati
a ) x+y+5
b) x+5+y
c) 3+x+y
d) x-3+y
e) x+(y+10)
f)x+x+y+y

Răspuns :

A) 1250+5= 1255 B) se inverseaza termenii(adunarea este comutativa) x+y+5=1250+5=1255 C) 3+1250= 1253 D) 1250-3=1247 E) 1250+10=1260 F) x+y ( x+y) = 1250+1250= 2500
Pisicuta
a)x+y+5=1250+5=1255
b)x+5+y=1250+5=1255
c)3+x+y=3+1250=1253
d) x-3+y=1250-3=1247
e)x+(y+10)=1250+10=1260
f)x+x+y+y=1250+1250=2500


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