a) 110700 : 15 . [ 356 – ( 2110 – 2000 )]
= 7380 . [ 356 - 110 ]
= 7380 . 246
= 1815480
b) 62500 : { 502 : [ 112 – ( 52 – 23 . 5 )]}
= 62500 : { 502 : [ 112 - ( 52 - 115)]}
= 62500 : { 502 : [ 112 - 52 + 115)]}
= 62500 : { 502 : 175 }
= 62500 : 502/175
≈ 21787,84861
c) 33 . 53 – 20 . { 300 – [ 540 – 23 ( 78 : 76 + 70 )]}
= 1749 - 20.{ 30 - [ 540 - 23 . 2699/38 ]
= 1749 - 20.{ 30 - [ 540 - 62077/38 ]
= 1749 - 20.{ 30 - ( -41557/38)
= 1749 - 20 . 42679/38
= 1749 - 426970/19
= -393739/19