\(\text{5^2: 5 + (116 +72: 36): 4}\\ =5+\left(116+2\right):4\\=5+118:4 \\ =5+29,5=34,5\)
1, 5^2:5+(116+72:36):4
=5+118:4
=5+7.375=12.375
2,=100:(250:-20)
=100:-12,5
=-8
(bài dễ bome:333
\(100:\left\{250:\left[450-\left(4.5^3-6.5\right)\right]\right\}\\ =100:250:\left[450-\left(500-30\right)\right]\\ =100:250:\left[450-470\right]\\ =0,4:-20\\ =-0,02\)