https://4apedia.com/index.php?action=history&feed=atom&title=Addition_and_Subtraction_1 Addition and Subtraction 1 - Revision history 2026-07-28T20:19:46Z Revision history for this page on the wiki MediaWiki 1.31.1 https://4apedia.com/index.php?title=Addition_and_Subtraction_1&diff=7229&oldid=prev Amycjgrace at 16:44, 8 February 2022 2022-02-08T16:44:00Z <p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 16:44, 8 February 2022</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''''Addition and Subtraction 1''''' teaches and tests students on addition and subtraction mathematics involving single digits, those from 0 to 9. It is an excellent resource for early mathematics students, giving them an opportunity to learn basic math skills in a fun and entertaining way that hardly feels like learning. Addition and Subtraction 1 was programmed and published by [[Thomas Hartsig]], and distributed by [[:Category:Scott Foresman|Scott Foresman]] for use on the TI-99/4A. It was released during the [[:Category:1981 Software|second quarter of 1981]] and distributed on the [[:Category:Solid State Software Command Module|Solid State Software&lt;sup&gt;TM&lt;/sup&gt; Command Module]]. Addition and Subtraction 1 is also able to take advantage of the add-on [[Solid State Speech Synthesizer|Solid State Speech&lt;sup&gt;TM&lt;/sup&gt; Synthesizer]] (sold separately) to enhance the educational experience of the program. 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It is an excellent resource for early mathematics students, giving them an opportunity to learn basic math skills in a fun and entertaining way that hardly feels like learning. Addition and Subtraction 1 was programmed and published by [[Thomas Hartsig]], and distributed by [[:Category:Scott Foresman|Scott Foresman]] for use on the TI-99/4A. It was released during the [[:Category:1981 Software|second quarter of 1981]] and distributed on the [[:Category:Solid State Software Command Module|Solid State Software&lt;sup&gt;TM&lt;/sup&gt; Command Module]]. Addition and Subtraction 1 is also able to take advantage of the add-on [[Solid State Speech Synthesizer|Solid State Speech&lt;sup&gt;TM&lt;/sup&gt; Synthesizer]] (sold separately) to enhance the educational experience of the program. 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color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://books.google.com/books?id=eD4EAAAAMBAJ&amp;pg=PA30&amp;lpg=PA30&amp;dq=ti+99+addition+and+subtraction+1&amp;source=bl&amp;ots=8inaXK_nqr&amp;sig=8BZrgHwZFF_Q7dqEda8HEVkWfyg&amp;hl=en&amp;sa=X&amp;ved=2ahUKEwihtcuRlurcAhXk7IMKHUwnCDE4ChDoATAJegQIARAB#v=onepage&amp;q=ti%2099%20addition%20and%20subtraction%201&amp;f=false/ InfoWorld Software Review: Addition and Subtraction 1 (Feb. 8, 1982, pg.30)]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://www.retroplace.com/en/games/7542--addition-and-subtraction-1/ Retroplace: Addition and Subtraction 1]</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; 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color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://books.google.com/books?id=eD4EAAAAMBAJ&amp;pg=PA30&amp;lpg=PA30&amp;dq=ti+99+addition+and+subtraction+1&amp;source=bl&amp;ots=8inaXK_nqr&amp;sig=8BZrgHwZFF_Q7dqEda8HEVkWfyg&amp;hl=en&amp;sa=X&amp;ved=2ahUKEwihtcuRlurcAhXk7IMKHUwnCDE4ChDoATAJegQIARAB#v=onepage&amp;q=ti%2099%20addition%20and%20subtraction%201&amp;f=false/ InfoWorld Software Review: Addition and Subtraction 1 (Feb. 8, 1982, pg.30)]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://www.retroplace.com/en/games/7542--addition-and-subtraction-1/ Retroplace: Addition and Subtraction 1]</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; 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font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [<ins class="diffchange diffchange-inline">https</ins>://elisoftware.org<ins class="diffchange diffchange-inline">/w</ins>/index.php/Addition_And_Subtraction_1_(TI99%5C4A,_Cartridge)_Texas_Instruments_-_1981_USA,_Canada_Release Eli's Software Encyclopedia: Addition and Subtraction 1]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://gamefaqs.gamespot.com/ti99/189569-addition-and-subtraction-1/ Game FAQs: Addition and Subtraction 1]</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://gamefaqs.gamespot.com/ti99/189569-addition-and-subtraction-1/ Game FAQs: Addition and Subtraction 1]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://books.google.com/books?id=eD4EAAAAMBAJ&amp;pg=PA30&amp;lpg=PA30&amp;dq=ti+99+addition+and+subtraction+1&amp;source=bl&amp;ots=8inaXK_nqr&amp;sig=8BZrgHwZFF_Q7dqEda8HEVkWfyg&amp;hl=en&amp;sa=X&amp;ved=2ahUKEwihtcuRlurcAhXk7IMKHUwnCDE4ChDoATAJegQIARAB#v=onepage&amp;q=ti%2099%20addition%20and%20subtraction%201&amp;f=false/ InfoWorld Software Review: Addition and Subtraction 1 (Feb. 8, 1982, pg.30)]</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; 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white-space: pre-wrap;"><div>| alt = Addition and Subtraction 1 Front Cover</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>| alt = Addition and Subtraction 1 Front Cover</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| caption = Addition and Subtraction 1 (Front Cover) &lt;ref&gt;{{cite web|title=TI99ers On-Line User Group: TI-99 Cartridge Listing|url=http://<del class="diffchange diffchange-inline">www.</del>ti99ers.org/timeline/cartbytitle.html}}&lt;/ref&gt;</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; 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color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 00:20, 22 May 2020</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l16" >Line 16:</td> <td colspan="2" class="diff-lineno">Line 16:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''''Addition and Subtraction 1''''' teaches and tests students on addition and subtraction mathematics involving single digits, those from 0 to 9. It is an excellent resource for early mathematics students, giving them an opportunity to learn basic math skills in a fun and entertaining way that hardly feels like learning. Addition and Subtraction 1 was programmed and published by [[Thomas Hartsig]], and distributed by [[:Category:Scott Foresman|Scott Foresman]] for use on the TI-99/4A. It was released during the [[:Category:1981 Software|second quarter of 1981]] and distributed on the [[:Category:Solid State Software Command Module|Solid State Software&lt;sup&gt;TM&lt;/sup&gt; Command Module]]. Addition and Subtraction 1 is also able to take advantage of the add-on [[Solid State Speech Synthesizer|Solid State Speech&lt;sup&gt;TM&lt;/sup&gt; Synthesizer]] (sold separately) to enhance the educational experience of the program. 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