CGP has sums covered with our bright and colourful First Sums Flashcards for ages 4-5! Theyre ideal for learning number bonds up to ten. The front of each card has an addition sum with an answer up to ten or a subtraction sum up to five. With the answers on the back of each card, you can practise with children one-to-one or in groups. We've also included some suggestions of games you can play to strengthen these key skills in different ways!