Răspuns :
9900 + 100 = > 10000 - 10 = > 9990
(10000-100=9900)
200 + 900 = > 1100 - 1000 = > 100 + 10000 = > 10100 - 1100 = 9000
( 100 + 1000 - 900 = 200)
In paranteze am aratat cum am ajuns la primul numar lipsa
(10000-100=9900)
200 + 900 = > 1100 - 1000 = > 100 + 10000 = > 10100 - 1100 = 9000
( 100 + 1000 - 900 = 200)
In paranteze am aratat cum am ajuns la primul numar lipsa
9900+100=10000 -10=9990
200+900=1100-1000=100+10000=10100-1100=9000
200+900=1100-1000=100+10000=10100-1100=9000