2. William said that when you multiply three positive and negative decimals, the answer changes depending on where you place the parentheses.
Use these numbers to answer the questions:
–2.4, –0.63, 1.8, –3.42
(a) Is William’s statement always true, sometimes true, or always false? Write two pairs of equations to support your answer.
(b) Write a rule describing the results when one multiplies three positive and negative decimals and changes the order of multiplication using parentheses.