Addition and subtraction - Bonds to 100 tens and ones - Worksheet

The worksheet "Bonds to 100 (Tens and Ones)" is a comprehensive resource for Year 6 students to enhance their fluency in addition and subtraction by mastering number bonds up to 100. The National Curriculum objective is for students to recall and use addition and subtraction facts to 20 fluently and to derive and use related facts up to 100. To facilitate learning, the worksheet provides differentiated sheets, teaching slides, and practical tools such as 100 squares, Base 10 blocks, and bead strings. Students consolidate their understanding of number bonds to 10 and 20 and apply this to find number bonds to 100, using tens and ones. The key vocabulary includes terms such as 'number bonds', 'Base 10', and 'exchange'.

The worksheet encourages children to engage in various activities, prompting them to explore how many more tens and ones are needed to make 100, and to use Base 10 blocks for visual and hands-on learning. Key questions guide the students through the process, asking them to identify the tens and ones required to complete a hundred and to demonstrate their understanding by using Base 10. The activities cater to different levels of mastery, from 'Working Towards' to 'Greater Depth', with tasks that range from completing patterns with increments or decrements of 10, 5, or 12 to matching pairs of numbers that sum up to 100. The exercises not only help students practice their arithmetic but also develop their reasoning and problem-solving skills.