Fill in the operation symbol or bracket on the horizontal line to make the equation hold 4 = 1,4 = 3

Fill in the operation symbol or bracket on the horizontal line to make the equation hold 4 = 1,4 = 3

Root 4-4 △ 4
=2-4÷4
=2-1
=1
4 - (radical 4-4 △ 4)
=4-1
=3

Where appropriate, add the operation symbol or () to make the equation hold
8 8 8 8 8 8 8 8 8 8 8 =1994 8 8 8 8 8 8 8 8 8 8 8=1995

[(8+8+8+8)*8-8]*8+8+(8+8)/8=1994 8×（(√(8^8))/(8+8)-8)+8+(8+8+8)/8=1995

Add the operation symbol in the appropriate place to make the equation hold 4 = 1000

The general solution to the problem of adding symbols is the backward push method, as well as the trial method
The answer is not the only one,
（4 4 4 4 -4 4 4 ）÷4 +4 4- 4 4=1000

How many seconds is 300 hours

300 * 3600 = 1080000 seconds