`1 ) ( -3/2 )^2 - 3. 6`

`= 9/4 - 18`

`= -63/4`

`2 ) ( -1/2 )^2 . 4 + 1/3 . 3^2 + ( 1/2020 )^0`

`= 1/4 . 4 + 1/3 . 9 + 1`

`= 1 + 3 + 1`

`= 4 + 1`

`= 5`

`3 ) ( 3/7 )^3 . ( 7/6 )^3 + 2/3 : ( 4/3 )^2`

`= 27/343 . 343/216 + 2/3 : 16/9`

`= 1/8 + 3/8`

`= 1/2`

`4 ) 2^3 - 3 . ( 1/2 )^0 - 1/4 + [ ( -2 )^2 : 1/2 ] : 8`

`= 8 - 3 . 1 - 1/4 + [ 4 : 1/2 ] : 8`

`= 8 - 3 - 1/4 + 8 : 8`

`= 5 - 1/4 + 1`

`= 19/4 + 1`

`= 23/4`

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