`C=478.3^5-3^5. 78+15^2+5^2-5^2.2^3`
`C=478.243-243.78+225+25-25.8`
`C=243.(478-78)+250-200`
`C=243.400+50`
`C=97200+50`
`C=97250`
Vậy `C=97250`
`D={2^3. 30-[36-(9-3)^2]}:15.2^4`
`D={8.30-[36-36)]}:15.16`
`D=240:240`
`D=1`
Vậy `D=1`
`F=23+5^2-{11-[3^2-2(5^2-3.2^3)]}`
`F=23+25-{11-[9-2(25-24)]}`
`F=48-(11-7)`
`F=48-4`
`F=44`
Vậy `F=44`