Răspuns :
Răspuns:
a)60-56+35+45-64+72-21
=4+80-136-21
=84-115
=31
b)81-18:2+30:6-16:4+24
=81-9+5-4+24
=72+1+24
=73+24
=97
A) 60-56+35+45-64+72-21
4+80-64+51
84-64+51
20+51
71
B)81-9+5-4+24
72+1+25
98
4+80-64+51
84-64+51
20+51
71
B)81-9+5-4+24
72+1+25
98