Q2. The numerals in the upper left quadrant of the Babylonian hand tablet depicted on p. 67 are translated as: 5 tens combined with 3 tens is 2 tens plus 5; that answer combined with 3 (ones) is 1 and

Q2. The numerals in the upper left quadrant of the Babylonian hand tablet depicted on p. 67 are translated as: 5 tens combined with 3 tens is 2 tens plus 5; that answer combined with 3 (ones) is 1 and 1 ten plus 5. (The answers are to the right of the vertical line.) For what operation(s) and place values is this computation correct? Explain. Then explain how a zero symbol would help to clarify this computation.