--- title: "Doubles and halves" url: "https://yarmprimaryschool.net/blog/2018-12-07-00-00-00-doubles-and-halves" school: "Yarm Primary Academy" --- # Doubles and halves 7 December 2018 [anna](https://yarmprimaryschool.net/blog/author/anna) [Year 1](https://yarmprimaryschool.net/blog/category/year-1) This week we have been doubling and halving numbers to 20. We are good at using apparatus to help our understanding. Our next challenge is to learn them without having to use apparatus. Can you double the following numbers? : 6 8 3 12 Can you half the following numbers?: 20 6 18 4 [ Surprising sharks](https://yarmprimaryschool.net/blog/2018-12-03-00-00-00-surprising-sharks) [Homework ](https://yarmprimaryschool.net/blog/2018-12-07-00-00-00-homework) ![Yarm Primary Academy](https://files.schudio.com/yarm-primary-school-2/images/logo/Yarm-Logo(1).png) ### Yarm Primary Academy Spitalfields Yarm STOCKTON-ON-TEES TS15 9HF 01642 782731 ### Social Media - [Instagram](https://www.instagram.com/yarmprimaryschool/) © Copyright 2026 Yarm Primary Academy School & Trust Websites by [ ![Schudio logo](https://yarmprimaryschool.net/img/logo/light.png) ](https://www.schudio.com/)