![An image of the 1 More and 1 Less Main Activity Resource](https://d52m8jhkbaeog.cloudfront.net/featured-images-lq/917e9ba380f73ab2cb95c7451baf2de0baae1db7/917e9ba380f73ab2cb95c7451baf2de0baae1db7.webp)
Use Base 10 to develop understanding of place value with our Year 1 1 More 1 Less resource. Children will use Base 10 to make a number, then move on to find 1 more and 1 less. This activity has six different questions and can be self or peer marked using our answer sheet.