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### Number and algebra

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### Advanced mathematics

# Dominoes Environment

## You may also like

### Worms

### Buzzy Bee

### Fair Exchange

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

Or search by topic

Age 5 to 11

Challenge Level

- Interactive environment
- Teachers' Resources

Explore our dominoes environment, or scroll down for some instructions.

A domino can be selected by clicking on it. To select more than one domino, hold down the shift key as you click on each one. Alternatively, you can drag a selection box around a group of dominoes.

One or more dominoes can be moved around the screen by selecting and dragging them, or by using the arrow keys.

Dominoes can be rotated by selecting them and then by using either of the two circular buttons on the left.

To get rid of dominoes from the screen, select them and click 'Discard'.

Selected dominoes can be put in a bag, which removes them from sight, by clicking 'Put in bag'. Clicking 'Draw from bag' returns one domino at random to the screen.

'Save' allows you to save the dominoes that are currently on your screen. A .json file will be downloaded and can be shared with others, then uploaded using the 'Load' button.

Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?

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?

In your bank, you have three types of coins. The number of spots shows how much they are worth. Can you choose coins to exchange with the groups given to make the same total?