Question

Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8. Identify any error in his work or reasoning.

Step 1: (6.2 − 1.6) − 4.4 + 7.8
Step 2: 6.2 + (−1.6 − 4.4) + 7.8 (commutative property)
Step 3: 6.2 − 6 + 7.8
Step 4: 6.2 + 7.8 − 6 (commutative property)
Step 5: 14 − 6 = 8

Answer 1

Answer:

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