Motivation The goal of this laboratory is to reinforce integer arithmetic in signed two's complement binary representation, as well as, conversion of fractional binary numbers. No calculators are allowed to solve these problems. You must perform all arithmetic operations by hand and show your work to receive full marks. You do not need to show your work for decimal to binary conversions in questions 1 and 2. Questions 1) Perform the following in binary using 8-bit signed two's complement signed binary representation. Remember to truncate when necessary. (0.5 marks each) a. 23 + 17 b. 101 + 15 c. -90 + 42 d. -13 + 19 e. 29 - 70 f. -110 - 29 g. -71 - 17 2) Perform the following in binary using 8-bit signed two's complement signed binary representation. Remember to truncate when necessary. (1 mark each) a. 21 x 4 b. 13 x 12