Question

Bài 1: Tính :

5) 23 - { 4 . 24 - [ 2\(^5\) . 3\(^2\) - ( 180 : 3\(^2\) ) ] }

Answer 1

\(23-\left\{4\cdot24-\left[2^5\cdot3^2-\left(180:3^2\right)\right]\right\}\)

\(=23-\left[96-\left(288-20\right)\right]\)

\(=23-\left(96-268\right)\)

\(=195\)

Answer 2

làm lại nha tính nhầm

=23-\(\left\{4.24\left[2^5.3^2-20\right]\right\}\)

=23-\(\left\{4.24-268\right\}\)

=23-(-172)

=195

Answer 3

=23-\(\left\{4.24\left[2^5.3^2-20\right]\right\}\)

=23-\(\left\{4.24.268\right\}\)

=23-25728

=-25705