Răspuns:
Explicație pas cu pas:
a) 47310:1245+2407:83=38+2407:83=38+29=67
b)818477:2011-50904:168=407-50904:168=407-303=104
c)2240:64+32000:256=35+32000:256=35+125=160
d) 32x79+48400:275-1860000:6000=2528+48400:275-1860000:6000=2528+176-1860000:6000=2528+176-310=2704-310=2394