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HelicopterOff Topics › Basic Math
09-27-2017 03:51 PM  8 months agoPost 1
Peter Wales

rrElite Veteran

Orlando Fl

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I was playing a computer game, ( I got fed up banging my head against Vario helis that dont fly) and the game posed some math problems.

1+2*2=
7*11-5*15+=
27-8*(37-17*2)=
99:(45-39+5)-25:5=

My answers were 5,2,3,5

And they were wrong.

All the answers have to be between 1 and 6

Has math changed since I went to school 100 years ago

Peter Wales
http://scalehelicopters.org

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09-27-2017 06:08 PM  8 months agoPost 2
AirWolfRC

rrProfessor

42½ N, 83½ W

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The 1st and 3rd are unambiguous.
- if they claim anything else, they're wrong.

In the 2nd one, what is "+=" ?
- it is a function used in some programming languages to increment a value by 1 but not in classic math.

In the 4th one, what is ":" ?
- if it is supposed to be "/" then the classic answer is 4

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09-27-2017 07:00 PM  8 months agoPost 3
ssmith512

rrKey Veteran

Indianapolis, IN USA

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1+2*2= 5
7*11-5*15= 2
27-8*(37-17*2)= 3
99/(45-39+5)-25/5= 4
Has math changed since I went to school 100 years ago
Not that I know of. PEMDAS

Steve

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09-27-2017 09:33 PM  8 months agoPost 4
Peter Wales

rrElite Veteran

Orlando Fl

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You got it Steve. thanks.

The last one had me puzzled as I did not know that : was equivalent to /

so yes math has changed since I went to school

Now, lets see whats behind that door

Peter Wales
http://scalehelicopters.org

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10-04-2017 10:45 PM  7 months agoPost 5
Jim Braccon

rrNovice

UK

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There's the problem. If you use basic math, it is too restrictive. If you use maths, you are considering the bigger picture.

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