Grade 1 Odd Even Worksheets | Free Worksheets | Printables These free grade 1 odd even worksheets are perfect to use after the colour by number worksheets. They will test your students and give you a good idea of their understanding. Grade 1 & 2 Mental Maths 60 weeks of grade 1 & 2 mental maths that will help your students improve in Mathematics. Your homework is set for the year! Just print and go!