Question

Rita is adding 3 + (–8) + 1. She rewrites the expression as 3 + (–1) + 8. What is Rita’s error?

Answer 1

Answer:

Rita made the $1$ negative and the $8$ positive

Step-by-step explanation:

we have

$3+(-8)+1$

eliminate the parenthesis

$3+(-8)+1=3-8+1=-4$ ----> in the expression the $1$ is positive and the $8$ is negative

Rita made the $1$ negative and the $8$ positive

Answer 2

The original sum has (+3) + (-8) + (+1), whereas in her rewritten version, the 1 is negative and the 8 is positive, which is incorrect. If we were answer the first, it would equal -4, but if we were to answer the second, it would equal 10. I hope this helps!