RIC-0563 Developing algebraic thinking
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LOCKER NUMBERS 2<br />
Use the number tiles 0 to 9 to find the 3-digit locker numbers.<br />
1. The first digit is twice the second<br />
digit.<br />
The second digit is twice the third<br />
digit.<br />
2. The second digit is the sum of the<br />
first and third digits.<br />
The number is greater than 700.<br />
3. The third digit is a positive multiple<br />
of 3.<br />
The second digit is 6 less than the<br />
first digit.<br />
The sum of the digits is even.<br />
4. The first digit is 3 more than the<br />
second digit.<br />
The second digit is 3 more than the<br />
third digit.<br />
The number is odd.<br />
5. Two is a factor of all 3 digits.<br />
The number is less than 500.<br />
The third digit is 2 less than the<br />
second digit.<br />
6. The locker number is even.<br />
The second digit is 4 more than the<br />
third.<br />
The first digit is 1 less than the<br />
third.<br />
R.I.C. Publications ® www.ricgroup.com.au DEVELOPING ALGEBRAIC THINKING 65<br />
ISBN 978-1-74126-088-5
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