Mathematics

Angel Harrell

19 March, 15:21

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 + 3.7 Step 2: 7.3 + (-7.2 - 3.8) + 3.7 (commutative property) Step 3: 7.3 - 11 + 3.7 Step 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

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