Question

1. Fill in the blanks.
(a) 1+ (-1) + (-1) +1 +1 +(-1) =​

Answer 1

1+ (-1) + (-1) +1 +1 +(-1) =0

Answer 2

Answer:

1-1-1-1+1-1

0-0+1-1

0+1-1

1-1

0