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| alt = Addition and Subtraction 1 Front Cover
| caption = Addition and Subtraction 1 (Front Cover) <ref>{{cite web|title=TI99ers On-Line User Group: TI-99 Cartridge Listing|url=http://www.ti99ers.org/timeline/cartbytitle.html}}</ref>
| publisher = [[Scott Foresman]] & [[Texas Instruments]]| part = SF 30201 & PHM 3027
| programmer = [[Thomas Hartsig]]
| format = [[:Category:Solid State Software Command Module|Solid State Software<sup>TM</sup> Command Module]]
