Set o gardiau darluniadol wedi eu dylunio i gynorthwyo plant i ymarfer adio rhifau i fyny hyd at 20. Wrth weithio drwy'r cwestiynau, daw'r plant o hyd i gyfansymau sy'n cyfateb. Er enghraifft mae 7+4 yn rhoi'r un cyfanswm â 8+3.
A set of attractively illustrated cards designed to help children practise the addition of numbers up to 20. In working through the questions, children find a matching total, for example 7+4 has the same total as 8+3.
