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30-08-2017
Mathematics

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13. Apply the rules for order of operations to simplify 2 + 3 − 4 + (5 × 4). A. 9 B. 24 C. 22 D. 21

Respuesta :

03-09-2017

Work: 2+3-4+(5×4)
Parenthesis
2+3-4+20
Add or subtract whichever comes first
5-4+20
Add or subtract whichever comes first
1+20
Add
21
Answer: 21 or D

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