take 4 4and 4 put 4 and 4 together(44) add 4 plus 4(8) =448
77 / 7 - 7
4/4=1 square root of 4 is 2. square root of 4 is 2. 2*2*1=4
just multiply 4 times 5=20
4-4=1,5+1=6,6*4=24