Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning. (5 points)
Step 1: (3.9 − 9.4) − 0.6 + 6.1
Step 2: 3.9 + (− 9.4 − 0.6) + 6.1 (associative property)
Step 3: 3.9 − 10 + 6.1
Step 4: 3.9 + 6.1 − 10 (identity property)
Step 5: 10 − 10 = 0

I WILL GIVE MADAL TO FIRST TO ANSWER..PLZ HELP HUGE BRIAN OVER LOAD..LAST QUESTION ON THE WORKSHEET!!!!

Question

Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning. (5 points)
Step 1: (3.9 − 9.4) − 0.6 + 6.1  
Step 2: 3.9 + (− 9.4 − 0.6) + 6.1 (associative property)  
Step 3: 3.9 − 10 + 6.1  
Step 4: 3.9 + 6.1 − 10 (identity property)  
Step 5: 10 − 10 = 0

I WILL GIVE MADAL TO FIRST TO ANSWER..PLZ HELP HUGE BRIAN OVER LOAD..LAST QUESTION ON THE WORKSHEET!!!!

texaschic101 · Answer

It looks correct except for the identity property....the identity property states that  you can add 0 to any number and it keeps its identity.....there are no 0's being added.

anonymous · Answer

THX