Make 20 - MathSphere
Make 20 - MathSphere
Make 20 - MathSphere
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© <strong>MathSphere</strong> P.O. Box 1234 Worthing BN14 7YX www.mathsphere.co.uk<br />
Puzzle time<br />
Add up to <strong>20</strong><br />
Using any whole numbers as many<br />
times as you like make each line of the<br />
rectangle add up to <strong>20</strong>.<br />
14 3<br />
4<br />
9<br />
Can you find more than one way to do this?<br />
Can you make up your own puzzle like this?<br />
Find the answer on the next page.
© <strong>MathSphere</strong> P.O. Box 1234 Worthing BN14 7YX www.mathsphere.co.uk<br />
Puzzle time<br />
Add up to <strong>20</strong> answer<br />
Now the key to doing this is to look at the top<br />
row.<br />
The numbers 3 and 14 add up to 17 which only<br />
leaves 3.<br />
So the two numbers must be 1 and 2 try them to<br />
see where they fit best.<br />
1 14 3 2<br />
15<br />
9<br />
4 4 3<br />
9
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