Equivalent fractions, decimals and percentages

problem
Sept 03

Age

11 to 14

Challenge level

What is the last digit of the number 1 / 5^903 ?
problem
Pride of place

Age

11 to 14

Challenge level

Two fractions have been placed on a number line. Where should another fraction be placed?
problem
Too close to call

Age

11 to 14

Challenge level

Weekly Problem 24 - 2012
Can you put these very close fractions into order?
problem
Linked chains

Age

7 to 11

Challenge level

Can you find ways to make twenty-link chains from these smaller chains? This gives opportunities for different approaches.
problem
Tumbling down

Age

7 to 11

Challenge level

Watch this animation. What do you see? Can you explain why this happens?
problem
Fractional triangles

Age

7 to 11

Challenge level

Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.
problem
Fractional wall

Age

7 to 11

Challenge level

Using the picture of the fraction wall, can you find equivalent fractions?
problem
Bryony's triangle

Age

7 to 11

Challenge level

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?
$Matching fractions$

problem
Matching fractions

Age

7 to 11

Challenge level

Can you find different ways of showing the same fraction? Try this matching game and see.
problem
Fraction lengths

Age

7 to 11

Challenge level

Can you find combinations of strips of paper which equal the length of the black strip? If the length of the black is 1, how could you write the sum of the strips?