Exploring and noticing

Lee was writing all the counting numbers from 1 to 20. She stopped for a rest after writing seventeen digits. What was the last number she wrote?

Which comes next in each pattern of dominoes?

Make one big triangle so the numbers that touch on the small triangles add to 10.

Buzzy Bee was building a honeycomb. She decorated the honeycomb with a pattern using numbers. Can you discover Buzzy's pattern and fill in the empty cells for her?

Can you find two butterflies to go on each flower so that the numbers on each pair of butterflies adds to the number on their flower?

Find the next two dominoes in these sequences.

What do you notice about these squares of numbers? What is the same? What is different?

Can you fill in the empty boxes in the grid with the right shape and colour?

Some children were playing a game. Make a graph or picture to show how many ladybirds each child had.

Make a chair and table out of interlocking cubes, making sure that the chair fits under the table!