Question

WILL GIVE BRAINLEST ANSWER TO WHO ANSWERS FIRST!!Eva is showing her work in simplifying (7.3 – 7.2) – 3.8 + 3.7. In which step did Eva make an error?Step 1: (7.3 – 7.2) – 3.8 + 3.7Step 2: 7.3 + (–7.2 – 3.8) + 3.7 (commutative property)Step 3: 7.3 – 11 + 3.7Step 4: 7.3 + 3.7 – 11 (commutative property)Step 5: 11 – 11 = 0 Step 2; she wrote commutative instead of distributive Step 4; she wrote commutative instead of distributive Step 4; she wrote commutative instead of associative Step 2; she wrote commutative instead of associative

Answer 1

Eva first should have started with the numbers in parentheses.

Step 1: (7.3-7.2) = 0.1

Step 2: 0.1+3.7=3.8

Step 3: 3.8-3.8=0

The error is in step 2. She wrote commutative instead of associative.