Calculati cat mai usor:a)7,2+5+2,8 b)42,76+11,39+51,24 c)12,57+7,03+24,43+2,97

Răspuns:
7,2+5+2,8=
12,2+2,8=15
42,76+11,39+51,24=
54,15+51,24=105,39
12,57+7,03+24,43+2,97=
19,6+27,4=47
Coroană