Reply To: 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 – 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 = ?

oomis – See above. Always do multiplications and divisions BEFORE additions and subtractions. So the only thing being multiplied by 0 here is the very last 1. You can add and subtract all the rest afterwards. Incidentally, 0 is also a real number.