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a fost răspuns

2. Calculati asociind convenabil termenii:
a) 254 + 89 + 11;
b) 899 + 576 + 2013
145 + 55 + 598;
391 + 280 + 220 + 109;
c) 555 + 3010 + 445 + 5090,
2005 + 768 + 32 +995 + 19,​

Răspuns :

Cattyy200
a)354
b)3488
798
1000
c)9100
3819
Nitubianca97
A. 254+89+11=
254+100=
=354
B. 899+576+2013=
1478+2013
=3491

145+55+598=
200+589=
=789


391+280+220+109=
391+500+109=
391+609=
=1000
C. 555+3010+445+5090=
=3565+445+5090
=4010+5090
=9100

2005+768+32+995+19=
=2005+800+1014
=2005+1814
=3819