Question

Efectuati

a) [(3x5-8:2:2)x2-1]:5+5
b)2x[ (495:5+1):2-9x5]10
c)49:7[ 2x3+(56:7-6x1):2]:7x3-23
d)10000-[10000-(10000-2685x3+9648:9):7+98x9]:7
e)1239-[6x7+88x2(9x4-18:2):3+100:2]+93:3

Answer 1

a) [(15-4:2)×2-1]:5+5
[(15-2)×2-1]:5+5
[13×2-1]:5+5
25:5+5=5+5=10

b) mai trebuie sa scrii o operatie inainte de 10 in fata parantezei patrate ca ai uitat dar il pot rezolva daca spui
c) dupa 49:7 ce urmeaza ca nu ai scris

d) 10000-[10000-(10000-8055+1072):7+882]:7
10000-[10000-(1945+1072):7+882]:7
10000-[10000-3017:7+882]:7
10000-[10000-431+882]:7
10000-[9569+882]:7
10000-10451:7=10000-1493=8507

e) ai uitat si aici un semn la 88×2..(9×4-18:2)
daca imi spui le pot rezolva