Get ready to learn first adding up sums!It's super-easy to learn how to do add up with the 25 first addition puzzles inside.From 1+2 and 3+4 to 5+3 and many more besides, there's lots of adding up fun in this early learning kit!Look at the adding up sums on the left-hand pages of the 24-page paint-with-water book, then use the special paint-with-water pen to trace over the pictures in the sums on the right-hand pages.Count and add the pictures, then write the answers to see them appear magically in colour!When the pictures and numbers dry and the colour disappears, the adding up fun can start all over again.Mess-free, 100% reusable early learning fun to spark number and adding up confidence, ready for school!