More articles on this subject
What numbers are hidden behind the two question marks?: What numbers do the two question marks in the pentagon represent?
spektrum.de/raetsel/welche-zahlen-verbergen-sich-hinter-den-beiden-fragezeichen/2085006
What numbers are hidden behind the two question marks?
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What is the area?: How can the area of ​​the triangle be calculated if the lengths of the three sides are known?
spektrum.de/raetsel/wie-gross-ist-der-flaecheninhalt/2243452
What is the area?
How many coins were in the piggy banks at the beginning?: How many 1-euro coins were in the piggy banks before the redistribution?
spektrum.de/raetsel/wie-viele-muenzen-befanden-sich-zu-beginn-in-den-spardosen/2243698
How many coins were in the piggy banks at the beginning?
How can the side lengths of the squares be determined?: What are the side lengths of the squares under these conditions?
spektrum.de/raetsel/wie-lassen-sich-die-seitenlaengen-der-quadrate-ermitteln/2243715
How can the side lengths of the squares be determined?
What is the area of ​​the trapezoid?: How can the area of ​​the trapezoid be determined?
spektrum.de/raetsel/wie-gross-ist-die-flaeche-des-trapezes/2243733
What is the area of ​​the trapezoid?
Is this assumption correct?: Is Marie right with her assumption?
spektrum.de/raetsel/trifft-diese-vermutung-zu/2243760
Is this assumption correct?
What number does n represent?: What number is represented by the natural number n?
spektrum.de/raetsel/fuer-welche-zahl-steht-n/2084802
What number does n represent?
How are the doors labeled?: The incomplete Advent calendar - | how should the numbers be distributed?
spektrum.de/raetsel/wie-werden-die-tuerchen-beschriftet/2087352
How are the doors labeled?
What height was the cone with its tip?: How high was the cone before it lost its tip?
spektrum.de/raetsel/welche-hoehe-hatte-der-kegel-mit-seiner-spitze/2084820
What height was the cone with its tip?
Which number represents the question mark?: Which number belongs in this number staircase?
spektrum.de/raetsel/welche-zahl-steht-fuer-das-fragezeichen/2084991
Which number represents the question mark?
How big is the pond?: How big will the new pond be?
spektrum.de/raetsel/wie-gross-ist-der-teich/2085060
How big is the pond?
Puzzles with Eder: What are the side lengths of the cube?: Dice numbers - | what is the natural number a?
spektrum.de/raetsel/welche-seitenlaenge-hat-der-wuerfel/2085072
Puzzles with Eder: What are the side lengths of the cube?
Puzzles with Eder: Which numbers solve this problem?: Hidden addition – can you figure out these numbers?
spektrum.de/raetsel/welche-zahlen-loesen-diese-aufgabe/2085171
Puzzles with Eder: Which numbers solve this problem?
Puzzles with Eder: Which number does not meet the criterion?: Special prime numbers - | Which one doesn't belong?
spektrum.de/raetsel/welche-zahl-erfuellt-das-kriterium-nicht/2085300
Puzzles with Eder: Which number does not meet the criterion?
Puzzle with Eder: What do these numbers have in common?: Looking for commonality - | what property is it?
spektrum.de/raetsel/was-haben-diese-zahlen-gemeinsam/2085345
Puzzle with Eder: What do these numbers have in common?
Puzzles with Eder: How can this area be calculated?: How big is the area of the yellow triangle?
spektrum.de/raetsel/wie-laesst-sich-diese-flaeche-berechnen/2087277
Puzzles with Eder: How can this area be calculated?
Puzzles with Eder: How can the percentage be determined?: What proportion of the property does the swimming pool occupy?
spektrum.de/raetsel/wie-laesst-sich-der-prozentuale-anteil-bestimmen/2087382
Puzzles with Eder: How can the percentage be determined?
Puzzle with Eder: What special thing do these numbers have in common?: What distinguishes these 15 three-digit natural numbers?
spektrum.de/raetsel/welche-besondere-gemeinsamkeit-haben-diese-zahlen/2239247
Puzzle with Eder: What special thing do these numbers have in common?
Puzzle with Eder: What is the area of ​​this triangle?: How can the area of ​​the blue triangle be calculated?
spektrum.de/raetsel/welche-flaeche-hat-dieses-dreieck/2261848
Puzzle with Eder: What is the area of ​​this triangle?
Puzzle with Eder: Which number is hidden behind the question mark?: Which number is missing from this table of numbers?
spektrum.de/raetsel/welche-zahl-versteckt-sich-hinter-dem-fragezeichen/2230530
Puzzle with Eder: Which number is hidden behind the question mark?