Mathematics, 17.02.2020 19:51 doe69902
Andrew is showing his work in simplifying β4.5 + 4.2 + 5.6 β 7.3. Identify any errors in his work or in his reasoning. Write feedback to Andrew explaining the mistake he made and how to correct his work.
Step Work Reasoning
β4.5 + 4.2 + 5.6 β 7.3 Original problem
1 β4.5 + 4.2 + 5.6 + (β7.3) Additive inverse
2 β4.5 + (β7.3) + 4.2 + 5.6 Commutative property
3 (β4.5 + (β7.3)) + (4.2 + 5.6) Associative property
4 β11.8 + 9.8 Simplify
5 β21.6 Simplify
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Andrew is showing his work in simplifying β4.5 + 4.2 + 5.6 β 7.3. Identify any errors in his work or...
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