3 () 3 () 3 = 5, fill in operation symbol or bracket There are 3 () 3 () 3 () 3 = 7, 3 () 3 () 3 () 3 = 2, 3 () 3 () 3 () 3 = 4, 3 () 3 () 3 () 3 = 6, 3 () 3 () 3 () 3 = 8. How to write? Come back to me quickly! This is homework!
3+3-(3/3)=5 3+3-3+3=6 3+3+(3/3)=7 3x3-3/3=8 3/3+3/3=2
To make the number 51 () have a factor of 2.3.5 at the same time, () can be filled in?
0, to be divisible by 5, one bit can only be 0 or 5
What does the 51 factor have
The 51 factors are 1, 3, 17, 51