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| Math Central | Quandaries & Queries |
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Hi, My name is Dishant. I know BEDMAS but im very cofused with this question. The question is 3-2(5x2)x2+7. Can you please help me? Thanks, Dishant. |
Hi Dishant,
B stands for brackets so the first step is to evaluate (5x2) = (10).
Now you have 3-2(10)x2+7.
There is no exponentiation (E) or division (D) so next is multiplication (M). There is a multiplication implicitbetween the 2 and 10 in 2(10) so you have to compute 2(10)x2 = 2 x 10 x 2 = 40.
Hence your problem reduces to 3 - 40 + 7.
Next comes addition (A) so add -40 and 7 to get -33 and hence the problem is now 3 - 33.
Finally subtraction (S): 3 - 33 = -30 and thus
3-2(5x2)x2+7 = -30
Penny
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