Question

Morris is showing his work in simplifying (−6.7 + 4.3) − 1.2.

Step 1: (4.3 − 6.7) − 1.2
Step 2: 4.3 − (6.7 + 1.2)
Step 3: 4.3 − (7.9)
Step 4: −3.6

Which statement is true?
In step 1, Morris used the commutative property.
In step 2, Morris used the distributive property.
In step 3, Morris used the associative property.
In step 4, Morris's answer is incorrect.

Answer 1

@mathstudent55

Answer 2

@Abhisar

Answer 3

@LifeIsADangerousGame

Answer 4

@HelpinHand

Answer 5

Which one do you think it is?