As presented the answer is no, 4 4 4 4 does not equal 20; and so it cannot be proven. There are ways of introducing symbols between the 4s to make the arithmetic work but that was not what the question was.
80 divided by 4 equals 20.
20
4
4 times 4 does not equal 20, it equals 16. 5 times 6 equals 30.
4/4+4*4=20 1+4*4=20 5*4=20 20=20
(4/4 + 4)4 = 20
20 - c equals 16 = 4
20 = 400
4 meters 20 centimeters equals 4.2 meters.
4
4 x 5 = 20 !
To find what times 4 equals something, you need to divide that "something" by 4. For example, if "something" is 20, then you would calculate 20 ÷ 4, which equals 5. Therefore, 5 times 4 equals 20. This method can be applied to any value of "something."