Question

Maya is showing her work in simplifying (5.2 − 4.5) − 5.5 + 4.8. Identify any error in her work or reasoning.

Step 1: (5.2 − 4.5) − 5.5 + 4.8
Step 2: 5.2 + (− 4.5 − 5.5) + 4.8 (identity property)
Step 3: 5.2 − 10 + 4.8
Step 4: 5.2 + 4.8 − 10 (commutative property)
Step 5: 10 − 10 = 0

She wrote identity instead of commutative in Step 2.

She wrote commutative instead of distributive in Step 4.

She wrote identity instead of associative in Step 2.

She wrote commutative instead of associative in Step 4.

HELP PLEASE AND IF YOU HELP I WILL GIVE YOU A MEDAL

Answer 1

I think it's the third one b/c the accusative property states that it doesn't matter how you group the numbers in parenthesis in addition.

Answer 2

*associative

Answer 3

@CrashOnce HELP