An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Find a great variety of ways of asking questions which make 8.

On my calculator I divided one whole number by another whole number and got the answer 3.125. If the numbers are both under 50, what are they?

Choose four different digits from 1-9 and put one in each box so that the resulting four two-digit numbers add to a total of 100.

Ten cards are put into five envelopes so that there are two cards in each envelope. The sum of the numbers inside it is written on each envelope. What numbers could be inside the envelopes?

Investigate the sum of the numbers on the top and bottom faces of a line of three dice. What do you notice?

A task which depends on members of the group noticing the needs of others and responding.

Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?