Visualising and representing

There are 575 NRICH Mathematical resources connected to Visualising and representing
Doubly Consecutive Sums
problem

Doubly consecutive sums

Age
11 to 14
Challenge level
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How many numbers less than 2017 are both the sum of two consecutive integers and the sum of five consecutive integers?
Soma Surface
problem

Soma surface

Age
11 to 14
Challenge level
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What is the surface area of the solid shown?
Tennis Training
problem

Tennis training

Age
14 to 16
Challenge level
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After tennis training, Andy, Roger and Maria collect up the balls. Can you work out how many Andy collects?
Same Face
problem

Same face

Age
11 to 14
Challenge level
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A cube is rolled on a plane, landing on the squares in the order shown. Which two positions had the same face of the cube touching the surface?
Travelator
problem

Travelator

Age
14 to 16
Challenge level
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When Andrew arrives at the end of the walkway, how far is he ahead of Bill?
Oldest and Youngest
problem

Oldest and youngest

Age
14 to 16
Challenge level
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Edith had 9 children at 15 month intervals. If the oldest is now six times as old as the youngest, how old is her youngest child?
Squares in a Square
problem

Squares in a square

Age
11 to 14
Challenge level
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In the diagram, the small squares are all the same size. What fraction of the large square is shaded?
Semicircular Design
problem

Semicircular design

Age
14 to 16
Challenge level
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Weekly Problem 9 - 2016
The diagram to the right shows a logo made from semi-circular arcs. What fraction of the logo is shaded?
Travelling by Train
problem

Travelling by train

Age
14 to 16
Challenge level
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Stephen stops at Darlington on his way to Durham. At what time does he arrive at Durham?
Doubly Symmetric
problem

Doubly symmetric

Age
11 to 14
Challenge level
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What is the smallest number of additional squares that must be shaded so that this figure has at least one line of symmetry and rotational symmetry of order 2?