Problem : 4 + 52 = ?

29

Problem : (4 + 5)2 = ?

81

Problem : 11×32 + 7 = ?

106

Problem : 343/72×22 = ?

28

Problem : 175/52 + (7 - 3)2 = ?

23

Problem : (7 - 4×(- 2))2 +23 = ?

233