2 years ago

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.

Mathematics

1 answer:

julia-pushkina [17]2 years ago

6 0

Answer:

D. Step 5

Step-by-step explanation:

Andrew made a mistake at last step.

<u>It should be:</u>

-11.8 + 9.8 = 9.8 - 11.8 = -2 but not -21.6

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