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a fost răspuns

Efectuează calculele aplicând procedee de calcul rapid:a)9999+1856= b)9998+6847= c)99999+245186= d)99995+197288=

Răspuns :

9999+1856=11855
9998+6847=16845
99999+245186=345185
99995+197288=297283
succes
9999+1856=11855
9998+6847=16845
99999+245186=345185
99995+197288=297283
mult noroc