Rainbow to 10 is the classic bonds-to-10 visual. The digits 0 to 10 sit in a row; the child taps one number, then taps its partner. When the two make 10, a coloured arc is painted between them. Find all six pairs - 0 and 10, 1 and 9, 2 and 8, 3 and 7, 4 and 6, and 5 and 5 - to complete the whole rainbow. An optional glow highlights the correct partner, and a spoken stem sentence can be switched on.
It builds visual, fluent mastery of every pair that makes 10, a Y1 UK National Curriculum objective. The partner glow gives an errorless way in for younger or SEND learners; turning it off moves the child on to recalling each partner from memory, so difficulty steps up at the pace that suits them.
Built by a UK SEND tutor with QTS, Rainbow to 10 is calm, ad-free and uses no third-party tracking. With the hint on it is errorless and there is no timer, which makes it well suited to 1:1 tutoring and screen-share therapy sessions. It works in any browser on a tablet, laptop or whiteboard, and is free to play with no signup.
Tap two numbers that make 10. Each pair paints an arc of the rainbow.