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simplify 3(-15)2

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2 Answers

I am not sure if you have ever heard of a math simple rule of how to deal with something like your problem. We in the Far East ( Singapore or Malaysia) use the following rule called BODMAS in order to solve your problems. Using this golden rule, we must solve your arithmetic or math problem in the following order:
 
B or any numbers in the bracket or parenthesis;
O or Of ( ^ or power of )
D or Division ( /)
M or Multiplication ( x)
A or Addition or (+)
S or Subtraction or minus (-)
 
Example:
 
3+2(-15 *2) -1 = 3 +2 (-30) -1 = 3+ (-60) -1 = 3-60-1= -57-1=-58
 
Good luck!
 
 
 
 
 
 
 
 
 

Whenever a number is next to a parenthesis you are supposed to multiply what is outside by what is inside. Also, the parenthesis might be there so that you can clearly see the 15 is negative. Because order does not matter if they are all multiplication you can multiply in any order you want. All of the following are correct. 3 x (-15) = -45 .... (-45) x 2 = -90 (-15) x 2 = -30 .... (-30) x 3 = -90 3 x 2 = 6 ... 6 x (-15) = -90