-4 x 5 = -20 and -4 + 5 = 1.
20 4 and 3
(22/4)x8-20=24
You can do just about anything if you use 4/4 as one of your addends.
I suppose you could write it as 20 and 4/4, but that doesn't make a lot of sense. In general, whole numbers and mixed numbers are separate things.
3 and 9
4 (4*3=12, 4*5=20)
The answer is twenty but there are many more.
4 × ((4 ÷ 4) + 4)=20
The two numbers are 5 and 4. 5 x 4 = 20 5 + 4 = 9
((7-2) * 4) + 8 = (5 * 4) + 8 = 20 + 8 = 28
6 numbers can go into 20; they are 1, 2, 4, 5, 10 and 20.