Math Test
Feb 21, 2019 06:51:47 #
This type of computation drives a friend of mine crazy, and he refuses to accept the correct answer.
Feb 21, 2019 06:52:40 #
Feb 21, 2019 07:27:53 #
Feb 21, 2019 07:55:44 #
Feb 21, 2019 08:09:35 #
Feb 21, 2019 08:56:22 #
Feb 21, 2019 11:04:57 #
PEMDAS or
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Start Divide/Multiply from left side to right side since they perform equally.
Start Add/Subtract from left side to right side since they perform equally.
First part of an equation is start solving inside the 'Brackets'.
Example; (6 + 4) × 5
First solve inside ‘brackets’ 6 + 4 = 10, then 10 × 5 = 50.
So answer for 3+3*3-3+3 = 12
Multiplication
3*3=9
=
3+9-3+3
Addition
3+9=12
=
12-3+3=15-3
Subtraction
15-3=12
Hence the answer is 12
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Start Divide/Multiply from left side to right side since they perform equally.
Start Add/Subtract from left side to right side since they perform equally.
First part of an equation is start solving inside the 'Brackets'.
Example; (6 + 4) × 5
First solve inside ‘brackets’ 6 + 4 = 10, then 10 × 5 = 50.
So answer for 3+3*3-3+3 = 12
Multiplication
3*3=9
=
3+9-3+3
Addition
3+9=12
=
12-3+3=15-3
Subtraction
15-3=12
Hence the answer is 12
Feb 21, 2019 13:00:20 #
Shellback wrote:
PEMDAS or br Parentheses br Exponents br Multip... (show quote)
The 3x3 was not in parenthesis, so I'm not sure if it has to be done first in this case, although there may be a rule for such.
Feb 21, 2019 13:04:03 #
speters wrote:
The 3x3 was not in parenthesis, so I'm not sure if it has to be done first in this case, although there may be a rule for such.
That's why I posted the rules - multiply/divide first - then add then subtract...
Feb 21, 2019 15:47:58 #
Looking at it from my point of view, I say 3 plus 3 is 6 times 3 is 18 minus 3 is 15 plus 3 is 18.
Feb 21, 2019 18:25:08 #
Yep - my wife's too LOL
Once I explained the rules she saw the light - not logical to her, but she understands...
Once I explained the rules she saw the light - not logical to her, but she understands...
Feb 21, 2019 18:39:57 #
Shellback wrote:
Yep - my wife's too LOL
Once I explained the rules she saw the light - not logical to her, but she understands...
Once I explained the rules she saw the light - not logical to her, but she understands...
Your rule works only if you set it up in the formula. Which has not been done in the original. If there were parentheses set in the equation then I would agree.
Feb 21, 2019 18:51:08 #
If the parentheses were there, then the rule would not be needed - but since they are not there, the rule falls into effect.
Feb 21, 2019 21:50:35 #
Shellback wrote:
If the parentheses were there, then the rule would not be needed - but since they are not there, the rule falls into effect.
I never was that good at math, that may be why I cut my board 3 times and it’s still too short.
Feb 21, 2019 22:09:52 #
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