Year 1 - Free Printable Mental Maths Worksheets for Children aged 4-11 Year 1 - Free Printable Mental Maths Worksheets for Children aged 4-11 Year 1 Worksheets Click here for the main worksheet index Here we have a selection of general worksheets for children in Year 1 - following on from their first learning to count; so, basic addition and subtraction, comparing, ordering, number bonds, etc.