A = 15.23 + 4.32 - 5.7
=> A = 15.8 + 4.9 - 5.7
=> A = 120 + 36 - 35
=> A = 156 - 35
=> A = 121
15.23 + 4.32 – 5.7 = 15.8 + 4.9 – 5.7 = 120 + 36 – 35 = 121
15.2^3+4.3^2-5.7= 15.8+4.9-5.7
=120+36-35
=121
A = 15.23 +4. 32 -5.7
A = 15. 8 + 4.9 - 5.7
A = 120 + 36 - 35
=> A = 121