Addition and subtraction

Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?

Find all the numbers that can be made by adding the dots on two dice.

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

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?

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

Use these head, body and leg pieces to make Robot Monsters which are different heights.

Here are some rods that are different colours. How could I make a yellow rod using white and red rods?

Can you hang weights in the right place to make the the number balance balanced?

Try grouping the dominoes in the ways described. Are there any left over each time? Can you explain why?

Leah and Tom each have a number line. Can you work out where their counters will land?