# Resources tagged with: Comparing and ordering numbers

### There are 15 results

Broad Topics >

The Number System and Place Value > Comparing and ordering numbers

##### Age 7 to 14

Challenge Level

Pick two rods of different colours. Given an unlimited supply of rods of each of the two colours, how can we work out what fraction the shorter rod is of the longer one?

##### Age 7 to 14

Challenge Level

There are nasty versions of this dice game but we'll start with the nice ones...

##### Age 11 to 14

Challenge Level

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

##### Age 11 to 14

Challenge Level

There are lots of ideas to explore in these sequences of ordered fractions.

##### Age 7 to 14

Challenge Level

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your opponent.

##### Age 7 to 14

Challenge Level

In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite each other? What do you notice?

##### Age 11 to 14

Challenge Level

What is the largest number you can make using the three digits 2, 3
and 4 in any way you like, using any operations you like? You can
only use each digit once.

##### Age 11 to 14

Challenge Level

From a group of any 4 students in a class of 30, each has exchanged
Christmas cards with the other three. Show that some students have
exchanged cards with all the other students in the class. How. . . .

##### Age 11 to 14

Challenge Level

A political commentator summed up an election result. Given that there were just four candidates and that the figures quoted were exact find the number of votes polled for each candidate.

##### Age 11 to 14

Challenge Level

Suppose you had to begin the never ending task of writing out the
natural numbers: 1, 2, 3, 4, 5.... and so on. What would be the
1000th digit you would write down.

##### Age 14 to 16

Challenge Level

Is it true that $99^n$ has 2n digits and $999^n$ has 3n digits? Investigate!

##### Age 11 to 14

Challenge Level

Can you arrange these numbers into 7 subsets, each of three
numbers, so that when the numbers in each are added together, they
make seven consecutive numbers?

##### Age 7 to 14

Challenge Level

Some of the numbers have fallen off Becky's number line. Can you figure out what they were?

##### Age 14 to 16

Challenge Level

All the words in the Snowman language consist of exactly seven
letters formed from the letters {s, no, wm, an). How many words are
there in the Snowman language?

##### Age 11 to 14

Challenge Level

How many ways can you write the word EUROMATHS by starting at the
top left hand corner and taking the next letter by stepping one
step down or one step to the right in a 5x5 array?