{"id":61,"date":"2022-08-16T19:48:25","date_gmt":"2022-08-16T23:48:25","guid":{"rendered":"https:\/\/opentextbc.ca\/alfm2\/?post_type=chapter&p=61"},"modified":"2022-12-06T14:22:08","modified_gmt":"2022-12-06T19:22:08","slug":"subtraction","status":"publish","type":"chapter","link":"https:\/\/opentextbc.ca\/alfm2\/chapter\/subtraction\/","title":{"raw":"Topic A: Subtraction","rendered":"Topic A: Subtraction"},"content":{"raw":"Subtraction<\/strong> takes an amount away<\/strong> from another amount. The result of subtraction is called the difference<\/strong>.\r\n\r\nThe minus sign \u2212<\/strong>\u00a0means to subtract. \"9\r\n\r\nThis says nine minus three equals six or nine take away three is six. The difference<\/strong> between 9 and 3 is 6.\r\n\r\nSubtraction is the opposite of addition. Look at the examples:\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Addition<\/th>\r\nSubtraction<\/th>\r\n<\/tr>\r\n
5 + 4 = 9<\/td>\r\n9 \u2013 4 = 5<\/td>\r\n<\/tr>\r\n
4 + 5 = 9<\/td>\r\n9 \u2013 5 = 4<\/td>\r\n<\/tr>\r\n
[latex]\\begin{array}[t]{rr}&8\\\\ + &3\\\\ \\hline &11\\end{array}[\/latex]<\/td>\r\n[latex]\\begin{array}[t]{rr}11\\\\ \u2212 &3 \\\\ \\hline &8\\end{array}[\/latex]<\/td>\r\n<\/tr>\r\n
[latex]\\begin{array}[t]{rr}&3 \\\\+ &8 \\\\ \\hline &11\\end{array}[\/latex]<\/td>\r\n[latex]\\begin{array}[t]{rr}11 \\\\\u2212 &8 \\\\ \\hline&3\\end{array}[\/latex]<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nSubtraction facts are a tool that you use to do subtraction questions.\r\n
\r\n

Exercise One<\/p>\r\n\r\n<\/header>\r\n

\r\n\r\nCheck out your subtraction facts by doing this exercise as quickly as you can. Then, make a list of any subtraction facts you do not know or are tricky for you - practice them.\r\n
    \r\n \t
  1. [latex]\\begin{array}[t]{rr}&5\\\\-&2\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  2. [latex]\\begin{array}[t]{rr}&9\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  3. [latex]\\begin{array}[t]{rr}&12\\\\-&4\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  4. [latex]\\begin{array}[t]{rr}&4\\\\-&2\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  5. [latex]\\begin{array}[t]{rr}&17\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  6. [latex]\\begin{array}[t]{rr}&2\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  7. [latex]\\begin{array}[t]{rr}&11\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  8. [latex]\\begin{array}[t]{rr}&7\\\\-&7\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  9. [latex]\\begin{array}[t]{rr}&14\\\\-&6\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  10. [latex]\\begin{array}[t]{rr}&16\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  11. [latex]\\begin{array}[t]{rr}&9\\\\-&3\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  12. [latex]\\begin{array}[t]{rr}&8\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  13. [latex]\\begin{array}[t]{rr}&9\\\\-&0\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  14. [latex]\\begin{array}[t]{rr}&14\\\\-&8\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  15. [latex]\\begin{array}[t]{rr}&10\\\\-&5\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n \t
  16. [latex]\\begin{array}[t]{rr}&15\\\\-&8\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\r\n<\/ol>\r\nAnswers to Exercise One<\/strong>\r\n
      \r\n \t
    1. 3<\/li>\r\n \t
    2. 8<\/li>\r\n \t
    3. 8<\/li>\r\n \t
    4. 2<\/li>\r\n \t
    5. 8<\/li>\r\n \t
    6. 1<\/li>\r\n \t
    7. 2<\/li>\r\n \t
    8. 0<\/li>\r\n \t
    9. 8<\/li>\r\n \t
    10. 7<\/li>\r\n \t
    11. 6<\/li>\r\n \t
    12. 7<\/li>\r\n \t
    13. 9<\/li>\r\n \t
    14. 6<\/li>\r\n \t
    15. 5<\/li>\r\n \t
    16. 7<\/li>\r\n<\/ol>\r\n<\/div>\r\n<\/div>\r\nNote: There is no self-test for this topic.","rendered":"

      Subtraction<\/strong> takes an amount away<\/strong> from another amount. The result of subtraction is called the difference<\/strong>.<\/p>\n

      The minus sign \u2212<\/strong>\u00a0means to subtract. \"9<\/p>\n

      This says nine minus three equals six or nine take away three is six. The difference<\/strong> between 9 and 3 is 6.<\/p>\n

      Subtraction is the opposite of addition. Look at the examples:<\/p>\n\n\n\n\n\n\n\n
      Addition<\/th>\nSubtraction<\/th>\n<\/tr>\n
      5 + 4 = 9<\/td>\n9 \u2013 4 = 5<\/td>\n<\/tr>\n
      4 + 5 = 9<\/td>\n9 \u2013 5 = 4<\/td>\n<\/tr>\n
      [latex]\\begin{array}[t]{rr}&8\\\\ + &3\\\\ \\hline &11\\end{array}[\/latex]<\/td>\n[latex]\\begin{array}[t]{rr}11\\\\ \u2212 &3 \\\\ \\hline &8\\end{array}[\/latex]<\/td>\n<\/tr>\n
      [latex]\\begin{array}[t]{rr}&3 \\\\+ &8 \\\\ \\hline &11\\end{array}[\/latex]<\/td>\n[latex]\\begin{array}[t]{rr}11 \\\\\u2212 &8 \\\\ \\hline&3\\end{array}[\/latex]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Subtraction facts are a tool that you use to do subtraction questions.<\/p>\n

      \n
      \n

      Exercise One<\/p>\n<\/header>\n

      \n

      Check out your subtraction facts by doing this exercise as quickly as you can. Then, make a list of any subtraction facts you do not know or are tricky for you – practice them.<\/p>\n

        \n
      1. [latex]\\begin{array}[t]{rr}&5\\\\-&2\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      2. [latex]\\begin{array}[t]{rr}&9\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      3. [latex]\\begin{array}[t]{rr}&12\\\\-&4\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      4. [latex]\\begin{array}[t]{rr}&4\\\\-&2\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      5. [latex]\\begin{array}[t]{rr}&17\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      6. [latex]\\begin{array}[t]{rr}&2\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      7. [latex]\\begin{array}[t]{rr}&11\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      8. [latex]\\begin{array}[t]{rr}&7\\\\-&7\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      9. [latex]\\begin{array}[t]{rr}&14\\\\-&6\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      10. [latex]\\begin{array}[t]{rr}&16\\\\-&9\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      11. [latex]\\begin{array}[t]{rr}&9\\\\-&3\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      12. [latex]\\begin{array}[t]{rr}&8\\\\-&1\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      13. [latex]\\begin{array}[t]{rr}&9\\\\-&0\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      14. [latex]\\begin{array}[t]{rr}&14\\\\-&8\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      15. [latex]\\begin{array}[t]{rr}&10\\\\-&5\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n
      16. [latex]\\begin{array}[t]{rr}&15\\\\-&8\\\\ \\hline \\\\ \\end{array}[\/latex]<\/li>\n<\/ol>\n

        Answers to Exercise One<\/strong><\/p>\n

          \n
        1. 3<\/li>\n
        2. 8<\/li>\n
        3. 8<\/li>\n
        4. 2<\/li>\n
        5. 8<\/li>\n
        6. 1<\/li>\n
        7. 2<\/li>\n
        8. 0<\/li>\n
        9. 8<\/li>\n
        10. 7<\/li>\n
        11. 6<\/li>\n
        12. 7<\/li>\n
        13. 9<\/li>\n
        14. 6<\/li>\n
        15. 5<\/li>\n
        16. 7<\/li>\n<\/ol>\n<\/div>\n<\/div>\n

          Note: There is no self-test for this topic.<\/p>\n","protected":false},"author":90,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-61","chapter","type-chapter","status-publish","hentry"],"part":59,"_links":{"self":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapters\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/wp\/v2\/users\/90"}],"version-history":[{"count":10,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapters\/61\/revisions"}],"predecessor-version":[{"id":646,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapters\/61\/revisions\/646"}],"part":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/parts\/59"}],"metadata":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapters\/61\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/wp\/v2\/media?parent=61"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/pressbooks\/v2\/chapter-type?post=61"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/wp\/v2\/contributor?post=61"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/opentextbc.ca\/alfm2\/wp-json\/wp\/v2\/license?post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}