Answer:
4) 4r3
5)28r2
7)5r3
8) 4r1
9) 4r5
10) 6r2
11) 5r1
12) 7r1
im assuming this is your homework, you might need to show work if you don't understand my explanation its basically, you divide the number by the greatest multiple factor, then whatever you have left is called a remainder
Explanation:
number 7, heres work (its division with remainders(what the r stands for. 8 doesnt go into four so you move over a digit now you have 43. eight times what gets you the closest to 43? 40 you get that from multiplying 8 by 5 so you put a five ontop of the line. now you do 43 - 40 you have three left eight can do anything to three so you put r three ontop of the problem by 5