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Result 1 to 20 of 27 total

Challenging problems. The visualization of the discriminant. (Uitdagende problemen. Het zichtbaar maken van de discriminant.) (Dutch)
Euclides 91, No. 7, 34-37 (2016).
Classification: I20
1
Challenging problems. Lots of ladders. (Uitdagende problemen. Ladderzat.) (Dutch)
Euclides 91, No. 4, 22-25 (2016).
Classification: G40 G60
2
Challenging problems. Mathematics in the newspaper. (Uitdagende problemen. Wiskunde uit de krant.) (Dutch)
Euclides 91, No. 6, 38-40 (2016).
Classification: A80
3
Challenging problems. Solving cubic equations by cutting. (Uitdagende problemen. Derdegraadsvergelijkingen oplossen door te zagen.) (Dutch)
Euclides 90, No. 4, 17-18 (2015).
Classification: H30
4
Challenging problems. A chessboard inside out. (Uitdagende problemen. Een schaakbord binnenstebuiten keren.) (Dutch)
Euclides 90, No. 6, 23-25 (2015).
Classification: G40 G50
5
Challenging problems. The grazing goat. (Uitdagende problemen. De grazende geit.) (Dutch)
Euclides 90, No. 5, 26-28 (2015).
Classification: G40
6
Challenging problems. Distance relationships. (Uitdagende problemen. Afstandsverhoudingen.) (Dutch)
Euclides 91, No. 3, 35-37 (2015).
Classification: G40
7
Challenging problems. A concluding lesson on numbers. (Uitdagende problemen. Een afsluitende les over getallen.) (Dutch)
Euclides 91, No. 2, 21-23 (2015).
Classification: F60
8
Challenging problems. Lines game. (Uitdagende problemen. Lijnenspel.) (Dutch)
Euclides 90, No. 7, 24-27 (2015).
Classification: A20
9
Challenging problems. Basin of Bibracte. (Uitdagende problemen. Bassin van Bibracte.) (Dutch)
Euclides 90, No. 3, 21-23 (2014).
Classification: M80 G40
10
Challenging problems. A large asteroid shaves narrowly along the Earth. (Uitdagende problemen. Grote asteroïde scheert rakelings langs aarde.) (Dutch)
Euclides 89, No. 7, 26-28 (2014).
Classification: M50
11
Challenging problems. The bus will come, the bus will come. (Uitdagende problemen. Busje komt zo, busje komt zo.) (Dutch)
Euclides 89, No. 4, 27-29 (2014).
Classification: K50 K20
12
Challenging problems. The miracle of Morley. (Uitdagende problemen. Mirakel van Morley.) (Dutch)
Euclides 90, No. 2, 17-19 (2014).
Classification: G40
13
Challenging problems. Remembering the solid. (Uitdagende problemen. Het lichaam onthoudt.) (Dutch)
Euclides 89, No. 5, 15-17 (2014).
Classification: D80 G40 U60
14
Challenging problems. Two mental activities. (Uitdagende problemen. Twee denkactiviteiten.) (Dutch)
Euclides 89, No. 6, 23-26 (2014).
Classification: D80 G30 G40
15
Challenging problems. An egg is part of it. II: {\it Klootbal}. (Uitdagende problemen. Een ei hoort erbij-deel. II: Klootbal.) (Dutch)
Euclides 89, No. 3, 17-19 (2013).
Classification: G40 G30
16
Challenging problems. On Set. (Uitdagende problemen. Aan Set.) (Dutch)
Euclides 88, No. 6, 303-305 (2013).
Classification: U60 Reviewer: Martin Winter (Vechta)
17
Challenging problems. Mathematics in literature, movies and museums. (Uitdagende Problemen. Wiskunde in literatuur, speelfilms and musea.) (Dutch)
Euclides 88, No. 7, 341-343 (2013).
Classification: M80 A80 Reviewer: Martin Winter (Vechta)
18
Challenging problems. Kissing circles. (Uitdagende problemen. Kissing circles.) (Dutch)
Euclides 88, No. 5, 247-249 (2013).
Classification: G40 U40 Reviewer: Martin Winter (Vechta)
19
Challenging problems. An egg is part of it. (Uitdagende problemen. Een ei hoort erbij.) (Dutch)
Euclides 89, No. 2, 27-29 (2013).
Classification: G30 Reviewer: Martin Winter (Vechta)
20
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