# Powers and Roots - Short Problems

This is part of our collection of Short Problems.

You may also be interested in our longer problems on Powers and Roots.

### Tenth Power

##### KS 3 Short Challenge Level:

Weekly Problem 48 - 2011
Do these powers look odd...

### Rooted Via 10

##### KS 3 Short Challenge Level:

Weekly Problem 22 - 2013
How many of the numbers shown are greater than 10?

### Maundy Money

##### KS 3 Short Challenge Level:

Weekly Problem 22 - 2009
How much money did the Queen give away in pence as a power of 2?

### The Square of My Age

##### KS 3 Short Challenge Level:

Weekly Problem 34 - 2011
Lauren and Thomas tell their ages in terms of sums of squares. Can you work out how old they really are?

### Age of Augustus

##### KS 3 Short Challenge Level:

Weekly Problem 47 - 2009
The English mathematician Augustus de Morgan has given his age in algebraic terms. Can you work out when he was born?

### Factorised Factorial

##### KS 3 Short Challenge Level:

Weekly Problem 17 - 2010
The value of the factorial $n!$ is written in a different way. Can you work what $n$ must be?

### Square Triangle

##### KS 3 Short Challenge Level:

Weekly Problem 42 - 2007
How many triangles have all three angles perfect squares (in degrees)?

### No Square Sums

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 12 - 2011
How many numbers do you need to remove to avoid making a perfect square?

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 13 - 2011
The sum of three square numbers equals $121$. What can those numbers be...

### Largest Expression

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 36 - 2006
Which of these five algebraic expressions is largest, given $x$ is between 0 and 1?

### Relative Powers

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 10 - 2007
The square of a number is 12 more than the number itself. The cube of the number is 9 times the number. What is the number?

### Cubic Fractions

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 46 - 2014
Which of these powers of fractions has greatest value?

### Equal Length Powers

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 33 - 2010
How many positive integers $n$ exist for which $n^2$ has the same number of digits as $n^3$?

### Powers of Four

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 52 - 2007
Can you work out the value of x in this 'power-full' equation?

### Mini Cross-number

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 47 - 2014
Which digit replaces x in this crossnumber?

### Powerful Order

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 6 - 2011
Powers of numbers might look large, but which of these is the largest...

### Integer Indices

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 6 - 2008
From this sum of powers, can you find the sum of the indices?

### Powerful Zeros

##### KS 3 & 4 Short Challenge Level:

Weekly Problem 32 - 2006
How many zeros are there at the end of $3^4 \times 4^5 \times 5^6$?

### Powered Up

##### KS 4 Short Challenge Level:

Weekly Problem 38 - 2014
Can you work out the product of these indices?