1.1 Evaluate each of the following without the use of a calculator. Show all working (steps). Write down the answer in the simplest form. 1.1.1 1[(3 4 7) 5] 2 24 6 (3) 1.1.2 3 [(2 3) 1 1 2 3 ] 1 (3 2) 2 (3)