### There are 10 results

Broad Topics >

Fractions, Decimals, Percentages, Ratio and Proportion > Equivalent fractions, decimals and percentages

##### Age 11 to 14 Challenge Level:

The Egyptians expressed all fractions as the sum of different unit
fractions. The Greedy Algorithm might provide us with an efficient
way of doing this.

##### 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?

##### Age 7 to 11 Challenge Level:

Using the picture of the fraction wall, can you find equivalent fractions?

##### Age 11 to 14 Challenge Level:

A jigsaw where pieces only go together if the fractions are
equivalent.

##### 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.

##### Age 11 to 16 Challenge Level:

Match the cards of the same value.

##### Age 7 to 11 Challenge Level:

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

##### Age 11 to 14 Challenge Level:

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

##### Age 11 to 14 Challenge Level:

The number 2.525252525252.... can be written as a fraction. What is
the sum of the denominator and numerator?

##### Age 11 to 14 Challenge Level:

Where will the point stop after it has turned through 30 000
degrees? I took out my calculator and typed 30 000 ÷ 360. How
did this help?