`a)``375:{32 -[4+(5.3^2-42)]}-14`
`= 375:{32 -[4+(5.9-42)]}-14`
`= 375:{32 -[4+(45-42)]}-14`
`= 375:[32 -(4+3)]-14`
`= 375:(32 -7)-14`
`= 375:25-14`
`= 1`
`b)` `210:[16+3.(6+3.2^2)]-3`
`=210:[16+3.(6+3.4)]-3`
`=210:[16+3.(6+12)]-3`
`=210:(16+3.18)-3`
`=210:(16+54)-3`
`=210:70-3`
`=0`
`c)``500 – {5 [409 – (2^3 . 3 – 21)^2] – 1724}`
`= 500 – {5 [409 – (16 . 3 – 21)^2] – 1724}`
`= 500 – {5 [409 – (48 – 21)^2] – 1724}`
`= 500 – {5 [409 – 27^2] – 1724}`
`= 500 – {5 [409 – 729] – 1724}`
`= 500 – {5 . (-320) – 1724}`
`= 500 – {5 . (-320) – 1724}`
`= 500 – {-1600 – 1724}`
`= 500 – {-1600 – 1724}`
`= 3824`
`d) 303 - 3 . { [ 655 - ( 18 : 2 +1 ) . 4^3 + 5 ] } : 10^0`
` = 303 - 3 . { [ 655 - ( 9 +1 ) . 64 + 5 ] } : 1`
` = 303 - 3 . { [ 655 - 10 . 64 + 5 ] } : 1`
` = 303 - 3 . { [ 655 - 10 . 64 + 5 ] } : 1`
` = 303 - 3 . { [ 655 - 640 + 5 ] } : 1`
` = 303 - 3 . { [ 15 + 5 ] } : 1`
` = 303 - 3 . 20 : 1`
` = 303 - 60 : 1`
` = 303 - 60 = 243`
a) 375 : { 32 - [ 4 +(5 . 32 - 43)]} - 14
= 375 : { 32 - [ 4 +( 5 . 9 - 43)]} - 14
= 375 : { 32 - [ 4 + 2]} - 14
= 375 : { 32 - 8} - 14
= 375 : 24 - 14
= 375 : 10
= 375