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Add to 200
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Add to 200

11 to 14
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By selecting digits for an addition grid, what targets can you make?

Divisively so
problem

Divisively So

11 to 14
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How many numbers less than 1000 are NOT divisible by either: a) 2 or 5; or b) 2, 5 or 7?
Handling Data - Short Problems
problem

Shifting Average

11 to 14
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What happens to the average if you subtract 8 from all of the numbers?

Brothers and sisters
problem

Brothers and Sisters

11 to 14
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Can you work out how many brothers and sisters are in the family?

tricky fractions
problem

Tricky Fractions

11 to 14
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Use this series of fractions to find the value of x.

Place value, integers, ordering and rounding - Short Problems
problem

AB Search

11 to 14
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The five digit number A679B, in base ten, is divisible by 72. What are the values of A and B?

Pendants
problem

Pendants

14 to 16
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What proportion of each of these pendants will be made of gold?

Geometry and Measure - Short Problems
problem

Stacked Cubes

14 to 16
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What is the total surface area of this shape?

What Are Numbers?
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What Are Numbers?

7 to 18
Ranging from kindergarten mathematics to the fringe of research this informal article paints the big picture of number in a non technical way suitable for primary teachers and older students.
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