Hard
Which of the following is the number 999(1/2) + 999(1/4) + 999(1/8) - 999(7/8)?
Explanation
Explanation
Adding the decimal equivalents: 999.5 + 999.25 + 999.125 - 999.875 = 2997.875 - 999.875 = 1998.
PRO TIP
Re-check your working by substituting the answer back into the original question.