Working systematically

There are 604 NRICH Mathematical resources connected to Working systematically
Rolling that cube
problem
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Rolling that cube

Age
5 to 11
Challenge level
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My dice has inky marks on each face. Can you find the route it has taken? What does each face look like?
A4 Fraction Addition
problem
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A4 fraction addition

Age
7 to 11
Challenge level
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Try adding fractions using A4 paper.

A4 Fraction Subtraction
problem
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A4 fraction subtraction

Age
7 to 11
Challenge level
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This task offers opportunities to subtract fractions using A4 paper.

Guess \my Quad
problem
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Guess my quad

Age
11 to 14
Challenge level
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How many questions do you need to identify my quadrilateral?

Gabriel's Problem
problem
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Gabriel's problem

Age
11 to 14
Challenge level
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Gabriel multiplied together some numbers and then erased them. Can you figure out where each number was?
Growing Surprises
problem
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Growing surprises

Age
11 to 14
Challenge level
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Can you find the connections between linear and quadratic patterns?
Completing Quadrilaterals
problem
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Completing quadrilaterals

Age
11 to 14
Challenge level
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We started drawing some quadrilaterals - can you complete them?

Making a difference
problem
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Making a difference

Age
11 to 14
Challenge level
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How many different differences can you make?
Six Numbered Cubes
problem
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Six numbered cubes

Age
7 to 11
Challenge level
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This task combines spatial awareness with addition and multiplication.
Wipeout
problem
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Wipeout

Age
11 to 16
Challenge level
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Can you do a little mathematical detective work to figure out which number has been wiped out?