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Row Sum
In the following arrangement of numbers, investigate the sum of all the numbers in a row. State your rule. Then use the rule to find the sum of the numbers in the 30th row.
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1 |
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3 |
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5 |
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7 |
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9 |
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11 |
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13 |
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15 |
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17 |
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19 |
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| 21 |
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23 |
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25 |
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27 |
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29 |
(Source: Mathematics Teaching in the Middle School, Nov-Dec 1997)
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