Every card shows a number and a suit - spades, clubs, hearts or diamonds. The result stands behind the cards.
All cards of the same suit count the same way - either they are all added or all taken away. Your child writes a + or a − next to each suit.
Exactly one way of choosing plus and minus gives the result.
Example
For parents
What does this exercise practice?
Plus or minus practices adding and subtracting up to 20 and trying things out in order - first sort by suit, then check one possibility after another.
Common pitfalls
A common mistake is giving two cards of the same suit different signs. It helps to add up the cards of one suit first.
How to practice at home
Draw a few real playing cards up to 10, work out a result and let your child guess which suit was taken away.