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So far you have used arrows to describe moves on various 100-cell number grids made up<br />
of ten columns and ten rows. Investigate what happens if you use arrows to describe<br />
moves on different sized grids.<br />
For example, on a 10 x 10, 1–100 number grid an arrow like this means move down<br />
one cell or add ten.<br />
1. What would these arrows mean on a<br />
5 x 5 grid numbered 1–25?<br />
(a) <br />
(b)<br />
<br />
(c)<br />
<br />
All the Right Moves – 3<br />
1 2 3 4 5<br />
6 7 8 9 10<br />
11 12 13 14 15<br />
16 17 18 19 20<br />
21 22 23 24 25<br />
2. Choose a grid to investigate. Describe the grid you are<br />
investigating and what each of the following arrows mean when<br />
applied to the grid.<br />
Grid<br />
(a) (f) (k)<br />
(b) (g) (l)<br />
(c) (h) (m)<br />
(d) (i) (n)<br />
(e) (j) (o)<br />
3. Describe what you notice when the grid size changes.<br />
R.I.C. Publications www.ricgroup.com.au<br />
41<br />
<strong>Number</strong> <strong>Grids</strong><br />
ISBN 978-1-86311-826-2
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