Year 3 AdditionWhen adding mentally numbers with a mixture of 1, 2 and 3 digits it is a great help to have a good understanding of place value. Our latest set of worksheets looks at this in detail and will easily identify those who have a sound understanding.We have also just published our first on-screen activity which looks at the standard written method of addition. Children are asked to enter the missing digit, but care needs to be taken, especially when the numbers in the ones column add up to ten or more.Go to Maths Year 3 AdditionGo to Maths Games Year 3 Addition