Rita is adding 3 + (–8) + 1. She rewrites the expression as 3 + (–1) + 8. What is Rita’s error?
She used the commutative property, which cannot be used with negative numbers.
In the new expression, –8 and 1 should both be negative.
She used the associative property which should only be used with positive numbers..
She switched the negative signs for –8 and 1.
She used the commutative property, which cannot be used with negative numbers.
In the new expression, –8 and 1 should both be negative.
She used the associative property which should only be used with positive numbers..
She switched the negative signs for –8 and 1.