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Bezzdna [24]
3 years ago
5

. 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. Write f

eedback to Andrew explaining the mistake he made and how to correct his work.
Mathematics
1 answer:
jeka943 years ago
8 0

Step-by-step explanation:

The given problem is : −4.5 + 4.2 + 5.6 − 7.3

The order for solving an arithmetic problem is as follows :

  • Parentheses,
  • Exponentiation,
  • Multiplication,
  • Addition,
  • Subtraction,

We can rewrite the given problem as : 4.2 + 5.6 - 7.3 - 4.5

Taking 4.2 and 5.6 together in bracket : (4.2 + 5.6) - 7.3 - 4.5

= 9.8 - 7.3 - 4.5

= 2.5 - 4.5

= -2

Hence, the answer for given problem is -2, but Andrew get -21.6 which is wrong.

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