1 ) [ 2400 - 75 x ( 96 : 3 : 2 ) ] x 235 =
= [ 2400 - 75 x ( 32 : 2 ) ] x 235
= [ 2400 - 75 x 16 ] x 235
= [ 2400 - 1200 ] x 235
= 1200 x 235
= 282000
-------------------------------------------------
2 ) 1000 - [ ( 250 : 25 + 330 : 3 ) - ( 30 x 2 - 5 x 8 ) ] x 4 =
= 1000 - [ ( 10 + 110 ) - ( 60 - 40 ) ] x 4
= 1000 - [ 120 - 20 ] x 4
= 1000 - 100 x 4
= 1000 - 400
= 600
-----------------------------------------------
3 ) ( 220 : 4 + 6 ) x 100 - [ 25 + ( 299 - 77 x 3 ) ] + 12 =
= ( 55 + 6 ) x 100 - [ 25 + ( 299 - 231 ) ] + 12
= 61 x 100 - [ 25 + 68 ] + 12
= 6100 - 93 + 12
= 6007 + 12
= 6019
-------------------------------------------
4 ) [ 700 - ( 505 - 135 x 2 - 38 x 3 ) x 2 ] - 100 =
= [ 700 - ( 505 - 270 - 114 ) x 2 ] - 100
= [ 700 - ( 235 - 114 ) x 2 ] - 100
= [ 700 - 121 x 2 ] - 100
= [ 700 - 242 ] - 100
= 458 - 100
= 358
------------------------------------------
5 ) 32 x 51 : 8 x 200 - [ 775 : 25 x ( 172 - 85 ) ] =
= 1632 : 8 x 200 - [ 31 x 87 ]
= 204 x 200 - 2697
= 40800 - 2697
= 38103
---------------------------------------------
6 ) [ ( 24 x 8000 - 190000 ) : 1000 x 63 - 36 ] : 45 =
= [ ( 192000 - 190000 ) : 1000 x 63 - 36 ] : 45
= [ 2000 : 1000 x 63 - 36 ] : 45
= [ 2 x 63 - 36 ] : 45
= [ 126 - 36 ] : 45
= 90 : 45
= 2