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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.

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Number Detective

Follow the clues to find the mystery number.

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Grouping Goodies

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

Venn Diagrams

Stage: 1 and 2 Challenge Level: Challenge Level:1

Can you place the numbers from $1$ to $40$ into this Venn diagram?
How do you know where to put each number?
You might like to print off this sheet if you do not want to use the interactivity.

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Here is another one for you to try. If you'd prefer to work on paper, print off this sheet.

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