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Sumtrekanter

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by

Alisa Tellefsen

on 27 February 2014

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Transcript of Sumtrekanter

Opgave 6.1
Spørgsmål: Hvorfor skal der ikke stå 2 i en øverste firkant i sumtrekanten?
Sumtrekanter
Opgave 6.4
a+b+a+c+b+c = 2a+2b+2c
Opgave 6.2
Opgave 6.3
12+16+8= 36
Information
Figuren viser en udfyldt sumtrekant.
I en sumtrekant skal tallene i hver cirkel være lig med summen af tallene i de to nærmeste firkanter.
Han (Mikael) må kun bruge hele
positive tal.
2
9
1
Svar: Nej
:(
(1+2=3 ikke 5...)
Spørgsmål: Udfyld sumtrekanten på svararket
3
8
2
10+6+2=18
18*2=36
Mikael har ret
:)
Information:
Mikael tror, at summen af tallene i en sumtrekants tre cirkler altid er dobbelt så stor som summen af de tre firkanter i sumtrekanten. For at være helt sikker udfylder Mikael en sumtrekant med de variable
a,b
og
c
a+a+b+b+c+c = 2a+2b+2c
2a+2b+2c = 2a+2b+2c
Full transcript