Question

Answer 1

`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`

Answer 2

Nhìn mờ

 

Answer 3

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