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100 Square Jigsaw

Complete the jigsaw of the $100$ square.

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You could print off this sheet of the square and the pieces to cut out.

Why do this problem?

This jigsaw could be used as an exploratory tool for children who haven't met the $0$ - $99$ hundred square before, or it could play a part in assessing their understanding of it, if they have already met it. The problem is a great way to reinforce children's understanding of the sequences contained within the hundred square even if they have seen it before.

Possible approach

You could use this jigsaw as a whole class activity on an interactive whiteboard, inviting children to explain how they would start and going on to complete the task altogether.

Alternatively, you could introduce the jigsaw to the whole group and then ask them to complete it in pairs, either at computers or by printing off and cutting out this sheet of the grid and pieces.

The conversations they have amongst each other as they work will be well-worth listening in on!

Key questions

Which piece has the lowest number on it?
Which has the highest number?
How might that help us to complete the jigsaw?

Possible extension

Children could cut up this sheet to make your own jigsaw for a friend to do. In addition, they might use a blank sheet of squared paper to make a hundred square with some numbers missing, or a differently sized numbered square such as $9$ by $9$ or $12$ by $12$.

Possible support

Pupils could use this sheet to locate the '$0$' and '$99$'. They could be encouraged to find the numbers that go next to numbers that are already in place.