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| Math Central | Quandaries & Queries |
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Question from Bernie, a student: Can you please solve one mathematical equation for me which is as follows. 3 squared - (5 + 16 divided by 4 times 2) Thank you |
Hi Bernie,
Let me illustrate with a similar problem
(3 × 12/4 + 8) - 23
BEDMAS tell us to evaluare what is inside the brackets first
3 × 12/4 + 8
Again using BEDMAS divide 12 by 4 to get 3 and then 3 × 3 = 9 so
3 × 12/4 + 8 = 3 × 3 + 8 = 9 + 8 = 17
Thus
(3 × 12/4 + 8) - 23 = 17 - 23
23 = 8 and hence
(3 × 12/4 + 8) - 23 = 17 - 23 = 17 - 8 = 9
I hope that helps,
Penny
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