File:09-240 Classnotes for Tuesday September 15 2009 page 3.jpg
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NOTE: 2+2 in the addition chart should read 4 and 2+3 should read 5; and
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:24, 15 September 2009 | 783 × 1,029 (364 KB) | Yangjiay (talk | contribs) | ||
18:24, 15 September 2009 | 783 × 1,029 (364 KB) | Yangjiay (talk | contribs) |
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