RIC-0563 Developing algebraic thinking
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ALPHABET ALGEBRA B<br />
Use all 10 number tiles 0 to 9 in the squares so that the sum of each line<br />
is the same.<br />
R.I.C. Publications ® www.ricgroup.com.au DEVELOPING ALGEBRAIC THINKING 109<br />
ISBN 978-1-74126-088-5