Everlasting Maths Worksheet - Addition. Choose from 3 levels of addition sums from single digits to three figure problems. Each sum is randomly produced one at a time on a blackboard style interface. Audio and visual encouragement let's you know when you are right and when you need to try again. Includes the ability to carry 1 when the answer to a column of figures is more than 9. Personalised certificates encourage improvement.Suitable for UK Key Stage 2, 3, 4 5 - USA 2nd to 12th Grade (Age 7 - adult)更多