### Number Round Up

Arrange the numbers 1 to 6 in each set of circles below. The sum of each side of the triangle should equal the number in its centre.

### Grouping Goodies

Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?

### What Number?

I am less than 25. My ones digit is twice my tens digit. My digits add up to an even number.

# More Numbers in the Ring

##### Stage: 1 Challenge Level:

Before doing this problem, it would be a good idea to look at Ring a Ring of Numbers .

Change the ring so that there are only 3 squares.
Can you place three different numbers in them so that their differences are odd?
Can you make the differences even?
What do you notice about the sum of each pair in each case?

Try with different numbers of squares around the ring.
What happens with 5 squares? 6 squares?
What do you notice?

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