Rounding Number Line YuMi Deadly Maths Past Project Resource YUMI DEADLY CENTRE School of Curriculum Enquiries: +61 7 3138 0035 Email: ydc@qut.edu.au http://ydc.qut.edu.au Number Line Rounding Restricted waiver of copyright This work is subject to a restricted waiver of copyright to allow copies to be made for educational purposes only, subject to the following conditions: All copies shall be made without alteration or abridgement and must retain acknowledgement of the copyright. The work must not be copied for the purposes of sale or hire or otherwise be used to derive revenue. The restricted waiver of copyright is not transferable and may be withdrawn if any of these conditions are breached. YuMi Deadly Maths Past Project Resource
© 2007, 2013 QUT YuMi Deadly Centre Number Line Rounding These are predominantly templates, giving one or two examples for each type of activity. They can be duplicated and used to work with students in developing and consolidating understanding of the relevant concepts. HOW TO USE THIS MATERIAL: Do not use this material in slide show, it will not work. Right click, and select “End Show” to exit slide show. For further details of how to use this material, please refer to Basic Maths Booklet VB2: Mathematics behind Whole-Number Numeration and Operations. © 2007, 2013 QUT YuMi Deadly Centre
Rounding to 10 – two options 10s labelled and 1s increments One example with four questions – one question completed © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre Tick the 10 which is closer. 100 110 140 150 170 180 190 200 106 141 178 196 ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| 100 110 120 130 140 150 160 170 180 190 200 © 2007, 2013 QUT YuMi Deadly Centre
Rounding to 10 – no options 10s labelled and 1s increments One example with four questions – one question completed © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre Type the 10 which is closer in the box above. 100 102 131 174 189 ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| 100 110 120 130 140 150 160 170 180 190 200 © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre Rounding to 10 – position first and no options 10s labelled and 1s increments One example with four questions – one question completed © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre Position the numbers. Type the 10 which is closer in the box above. ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| ||||||||| 100 110 120 130 140 150 160 170 180 190 200 186 163 128 111 © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre More options: Different number lines (as follow) Different number ranges For example: 300 to 400, 700 to 800, 0 to 50, 0 to 500, 0 to 1000, 0 to 1 million, etc. Round to 5s, 50s, 100s, 1000s, etc © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre 100 110 120 130 140 150 160 170 180 190 200 © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre 100 200 © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre 100 200 © 2007, 2013 QUT YuMi Deadly Centre
© 2007, 2013 QUT YuMi Deadly Centre 100 200 © 2007, 2013 QUT YuMi Deadly Centre