You 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
All of this multiply/divide or add/subtract you work from left to right???? What rubbish! It is quite simple: BODMAS...that is the Law on Arithmetic, Divide always comes before Multiply & Add always comes before Subtract! Don't make up your own rules. The Rules are already in place! BODMAS.
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
ReplyDeletehmm. no
DeleteWhen it comes to multiply/divide or add/subtract you work from left to right.
All of this multiply/divide or add/subtract you work from left to right???? What rubbish! It is quite simple: BODMAS...that is the Law on Arithmetic, Divide always comes before Multiply & Add always comes before Subtract! Don't make up your own rules. The Rules are already in place! BODMAS.
Delete3-3=0
ReplyDelete0x6=0
0+2=2
The answer is 2
Falcon51
Correcto
Delete-13
ReplyDelete-13
ReplyDeleteLa repuesta correcta es 2.
ReplyDelete