`105.2^3 - 5.2^2 - 5.7`

`= 105.8 - 5.4 - 5.7`

`= 21.5.8 - 5.4 - 5.7`

`= 168.5 - 5.4 - 5.7`

`= 5.(168 - 4 -7)`

`= 5.157`

`=785`

(Ý kiến của tui)

`35.273 + 3^3. 35`

`= 35.273 + 27.35`

`= 35.(273 + 27)`

`= 35. 300`

`= 10500`

Check lại(vì mình đọc nhầm đề)

`13 .3^3 + 17.3^3`

`= (13 + 17).3^3`

`= 30.3^3`

`= 30.27 =810`

`3^19 ÷ 3^19 + 5^2 . 8 - 1^2023`

`= 1 + 25 . 8 - 1^2023`

`= 1 + 200 - 1`

`= 200`

Hình lỗi nhé!

`3^19 : 3^19 + 5^2.5^3 - 1^2023`

`= 1 + 5^5 - 1^2023`

`= 1 + 3125 - 1`

`=3125`

`119.3^4 + 81`

`= 119. 81 + 81`

`=119.81 + 81.1`

`= (119 + 1) .81`

`= 120.81`

`=9720`

`3^3.19 - 3^3 .12`

`= 3^3.(19 - 12)`

`= 3^3.7 <=> 27.7`

`=189`

`5^2.33 + 5^2.67`

`= 5^2.(33 +67)`

`= 5^2.100 <=> 25.100`

`=2500`

`13.3^3 + 17.3^3`

`= (13 + 17).3^3`

`=30.3^3 <-> 30.9`

`= 270`

`4/5 - [(-5/2) - ( -3/4 + 2/8)]`

`= 4/5 -[(-5/2 ) + 3/4 + 2/8)]`

`= 4/5 + 5/2 + 3/4 + 2/8`

`= 4/5 + 5/2 + 3/4 + 1/4`

`= (4/5 + 5/2) + (3/4 + 1/4)`

`= 33/10 + 1`

`= 43/10 = 4,3`