Question

Andrew is showing his work in simplifying (-5.7+2.2)-1.1

Step 1 (3.2-5.7)-1.1
Step 2 2.2-(5.7+1.1)
Step 3 2.2-(6.8)
Step 4 -4.6

Which statement is true

In step 1, Andrew used the commutative property
In step 2, Andrew used the distributive property
In step 3, Andrew used the associative property
In step 4, Andrew's answer is incorrect

Answer 1

In step 2, Andrew used the distributive property
Thus is because a -1 was taken out of both -5.7 and -1.1