RIC-0563 Developing algebraic thinking
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SHAPES<br />
Triangle 10<br />
Place all 10 of the digits 0 to 9 in the squares so that the sum of each<br />
line is the same.<br />
What is the greatest possible sum<br />
you can find?<br />
What is the least possible sum you<br />
can find?<br />
R.I.C. Publications ® www.ricgroup.com.au DEVELOPING ALGEBRAIC THINKING 89<br />
ISBN 978-1-74126-088-5