Working systematically

There are 604 NRICH Mathematical resources connected to Working systematically
Blockupied
problem

Blockupied

Age
11 to 14
Challenge level
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A 1x2x3 block is placed on an 8x8 board and rolled several times.... How many squares has it occupied altogether?
Shaping Up
problem

Shaping up

Age
7 to 11
Challenge level
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Are all the possible combinations of two shapes included in this set of 27 cards? How do you know?
Kangaroo Hops
problem

Kangaroo hops

Age
11 to 14
Challenge level
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Weekly Problem 11 - 2011
Kanga hops ten times in one of four directions. At how many different points can he end up?
Newspapers
problem

Newspapers

Age
7 to 11
Challenge level
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When newspaper pages get separated at home we have to try to sort them out and get things in the correct order. How many ways can we arrange these pages so that the numbering may be different?
Bean Bags for Bernard's Bag
problem

Bean bags for bernard's bag

Age
7 to 11
Challenge level
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How could you put eight beanbags in the hoops so that there are four in the blue hoop, five in the red and six in the yellow? Can you find all the ways of doing this?
How Old?
problem

How old?

Age
7 to 11
Challenge level
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Cherri, Saxon, Mel and Paul are friends. They are all different ages. Can you find out the age of each friend using the information?
Magic Caterpillars
problem

Magic caterpillars

Age
14 to 18
Challenge level
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Label the joints and legs of these graph theory caterpillars so that the vertex sums are all equal.
How old are the children?
problem

How old are the children?

Age
11 to 14
Challenge level
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A student in a maths class was trying to get some information from her teacher. She was given some clues and then the teacher ended by saying, "Well, how old are they?"
Palindromic Date
problem

Palindromic date

Age
7 to 11
Challenge level
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What is the date in February 2002 where the 8 digits are palindromic if the date is written in the British way?
Octa Space
problem

Octa space

Age
7 to 11
Challenge level
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In the planet system of Octa the planets are arranged in the shape of an octahedron. How many different routes could be taken to get from Planet A to Planet Zargon?