ANSWER -13 is the Answer Explanation According to BODMAS Rule: 3-(3x6)+2 (First we calculate multiplication or division) 3-(18)+2 (3-18)+2 (Since addition and subtraction has equal priority, we calculate in the order from beginning) -15 +2 = -13
Think of it as money coming in and out of your bank account...
ReplyDeleteIf you have $3 and make a charge of $18, then you have -$15 in your account. Then adding $2 makes it overdrawn -$13.
BEDMAS can confuse people. The acronym is to remember the order of the components, but you still have to remember the entire list of rules.
Brackets
Exponents
Division and Multiplication
*(in the order they occur)
Addition and Subtraction
*(in the order they occur).
I was taught to do all the parenthesis then exponents, then insert brackets around the division & multiplication so it kept things in order.
So the equation is expressed as such
3 - 3 x 6 + 2
= 3 - (3 x 6) +2
Then you remember to do the equations inside brackets first, left to right, in the order they occur.
= 3 - (18) + 2
Then, since addition and subtraction are EQUAL, you do them IN ORDER, left to right.
= (3 - 18) + 2
= (-15) + 2
= (-13)
-13
ReplyDeleteYou are almost correct except for one mistake. BODMAS must be taken literally. You went wrong on the last part...MAS = Multiply, Add, Subtract. (ADD first, then SUBTRACT). = 3-18+2 = 3-20 = -17
ReplyDelete