Mathematics, 17.01.2021 03:00 COOLIOMARIS
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
a) Step 2; she wrote commutative instead of distributive
b)Step 4; she wrote commutative instead of distributive
c) Step 4; she wrote commutative instead of associative
d) Step 2; she wrote commutative instead of associative
Answers: 1
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Eva is showing her work in simplifying (7.3 – 7.2) – 3.8 + 3.7. In which step did Eva make an error?...
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