Find pairs of numbers that add up to one.
Click on the cards to find matching pairs.
Score: Number of Clicks:
This is a game for one or many players. Click on a card to see what it contains. Click on a second card and if the two cards make a pair you win them.
In the two (or more) player version a free turn is awarded to the player who finds a pair. The winner is the player who finds the most pairs.
The option to claim a trophy is available when all of the pairs have been found. The objective is to have the fewest number of ‘clicks’ recorded on your trophy.
All of the pairs have been found. . Can you do it using fewer clicks?
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Sum to One
Which Sum to One activity would you like to begin with? There are five to choose from.
Click a blue button to begin.
You can only click on two cards at a time. Please wait before looking for another pair.