{"id":39,"date":"2022-08-16T19:44:05","date_gmt":"2022-08-16T23:44:05","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/math022\/chapter\/expanded-form\/"},"modified":"2025-01-22T13:12:12","modified_gmt":"2025-01-22T18:12:12","slug":"expanded-form","status":"publish","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/math022\/chapter\/expanded-form\/","title":{"raw":"Topic B: Expanded Form","rendered":"Topic B: Expanded Form"},"content":{"raw":"When we write a number in expanded form, each digit is written with its place value.\n\nExample:\n\n\n\n\n\n\n
<\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
598 is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n5<\/td>\n9<\/td>\n8<\/td>\n<\/tr>\n
Each is written<\/td>\n<\/td>\n<\/td>\n500<\/td>\n90<\/td>\n8<\/td>\n<\/tr>\n
Expanded form<\/td>\n500 + 90 + 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nExample:\n\n\n\n\n\n\n
<\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
1068 is made of<\/span><\/td>\n<\/td>\n<\/td>\n<\/td>\n1<\/td>\n0<\/td>\n6<\/td>\n8<\/td>\n<\/tr>\n
Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n1000<\/span><\/td>\n<\/td>\n60<\/td>\n8<\/td>\n<\/tr>\n
Expanded form<\/td>\n1000<\/span> + 60 + 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nExample:\n\n\n\n\n\n\n
<\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
243690<\/span> is made of<\/td>\n<\/td>\n2<\/td>\n4<\/td>\n3<\/td>\n6<\/td>\n9<\/td>\n0<\/td>\n<\/tr>\n
Each is written<\/td>\n<\/td>\n200000<\/span><\/td>\n40000<\/span><\/td>\n3000<\/span><\/td>\n600<\/td>\n90<\/td>\n0<\/td>\n<\/tr>\n
Expanded form<\/td>\n200000<\/span> + 40000<\/span> + 3000<\/span> + 600 + 90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

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

\n
    \n \t
  1. 329\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    329 is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n3<\/td>\n2<\/td>\n9<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n300<\/td>\n20<\/td>\n9<\/td>\n<\/tr>\n
    Expanded form<\/td>\n300 + 20 + 9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
  2. 762\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
  3. 1847\n<\/span><\/span>\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
  4. 6301\n<\/span><\/span>\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
  5. 16492\n<\/span><\/span>\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
  6. 74296\n<\/span><\/span>\n\n\n\n\n\n\n
    <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
    is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
    Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\nAnswers to Exercise One<\/strong>\n
      \n \t
    1. 300 +\u00a0 20\u00a0 + 9<\/li>\n \t
    2. 700 +\u00a0 60\u00a0 + 2<\/li>\n \t
    3. 1000<\/span> + 800 + 40 + 7<\/li>\n \t
    4. 6000<\/span> + 300 + 1<\/li>\n \t
    5. 10000<\/span> +\u00a0 6000<\/span>\u00a0 +\u00a0 400\u00a0 +\u00a0 90\u00a0 + 2<\/li>\n \t
    6. 70000<\/span> +\u00a0 4000<\/span> +\u00a0 200\u00a0 +\u00a0 90\u00a0 + 6<\/li>\n<\/ol>\n<\/div>\n<\/div>\n
      \n

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

      \n\nWrite each number from expanded form. Check your work using the answer key at the end of the exercise.\n\nExample: <\/strong>600 + 30 + 7 = 637<\/strong>\n\nExample: <\/strong>7000<\/span> + 500 + 40 + 1 = 7541<\/span><\/strong>\n\nExample: <\/strong>4000000<\/span> + 600000<\/span> + 70000<\/span> + 8000<\/span> + 900 + 3 = 4678<\/span>903<\/span><\/strong><\/span>\n
        \n \t
      1. 400 +\u00a0 10\u00a0 +\u00a0 6 =<\/li>\n \t
      2. 500 +\u00a0 40\u00a0 +\u00a0 2 =<\/li>\n \t
      3. 5000<\/span> +\u00a0 600\u00a0 +\u00a0 10\u00a0 +\u00a0 8 =<\/li>\n \t
      4. 4000<\/span> +\u00a0 100\u00a0 +\u00a0 40\u00a0 +\u00a0 5 =<\/li>\n \t
      5. 20000<\/span> + 1000<\/span> + 800 + 10 + 2 =<\/li>\n \t
      6. 40000<\/span> + 200 + 5 =<\/li>\n \t
      7. 30000<\/span> + 4000<\/span> + 50 + 3 =<\/li>\n \t
      8. 200000<\/span> +\u00a0 50000<\/span> +\u00a0 3000<\/span> +\u00a0 400\u00a0 +\u00a0 80\u00a0 +\u00a0 3 =<\/li>\n \t
      9. 300000<\/span> + 50000<\/span> +\u00a0 6000<\/span> +\u00a0 700\u00a0 +\u00a0 10\u00a0 +\u00a0 9 =<\/li>\n \t
      10. 1000<\/span>000<\/span> + 400000<\/span> + 20000<\/span> + 3000<\/span> + 600 + 50 + 7 =<\/li>\n<\/ol>\nAnswers to Exercise Two<\/strong>\n
          \n \t
        1. 416<\/li>\n \t
        2. 542<\/li>\n \t
        3. 5618<\/span><\/li>\n \t
        4. 4145<\/span><\/li>\n \t
        5. 21812<\/span><\/li>\n \t
        6. 40205<\/span><\/li>\n \t
        7. 34053<\/span><\/li>\n \t
        8. 253483<\/span><\/li>\n \t
        9. 356719<\/span><\/li>\n \t
        10. 1423<\/span>657<\/span><\/li>\n<\/ol>\n<\/div>\n<\/div>\n

          Topic B: Self-Test<\/h1>\nMark \/ 12\u00a0\u00a0\u00a0 Aim\u00a0\u00a0 10\/12<\/strong>\n
            \n \t
          1. Write each number in expanded form. (6 marks.)\n
              \n \t
            1. 643<\/li>\n \t
            2. 759<\/li>\n \t
            3. 4821<\/span><\/li>\n \t
            4. 94205<\/span><\/li>\n \t
            5. 367542<\/span><\/li>\n \t
            6. 1850<\/span>643<\/span><\/li>\n<\/ol>\n<\/li>\n \t
            7. Write each number from its expanded form. (6 marks.)\n
                \n \t
              1. 300 + 60 + 9 =<\/li>\n \t
              2. 700 + 5 =<\/li>\n \t
              3. 1000<\/span> + 400 + 90 + 1 =<\/li>\n \t
              4. 20000<\/span> + 1000<\/span> + 500 + 80 + 4 =<\/li>\n \t
              5. 500000<\/span> + 40000<\/span> + 2000<\/span> + 700 + 30 + 9 =<\/li>\n \t
              6. 3000<\/span>000<\/span> + 900000<\/span> + 60000<\/span> + 8000<\/span> + 400 + 30 + 1 =<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

                Answers to Topic B Self-Test<\/h2>\n
                  \n \t
                1. \n
                    \n \t
                  1. 600 + 40 + 3<\/li>\n \t
                  2. 700 + 50 + 9<\/li>\n \t
                  3. 4000<\/span> + 800 + 20 + 1<\/li>\n \t
                  4. 90000<\/span> + 4000<\/span> + 200 + 5<\/li>\n \t
                  5. 300000<\/span> + 60000<\/span> + 7000<\/span> + 500 + 40 + 2<\/li>\n \t
                  6. 1000000<\/span> + 800000<\/span> + 50000<\/span> + 600 + 40 + 3<\/span><\/li>\n<\/ol>\n<\/li>\n \t
                  7. \n
                      \n \t
                    1. 369<\/li>\n \t
                    2. 705<\/li>\n \t
                    3. 1491<\/span><\/li>\n \t
                    4. 21584<\/span><\/li>\n \t
                    5. 542739<\/span><\/li>\n \t
                    6. 3968<\/span>431<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>","rendered":"

                      When we write a number in expanded form, each digit is written with its place value.<\/p>\n

                      Example:<\/p>\n\n\n\n\n\n\n
                      <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                      598 is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n5<\/td>\n9<\/td>\n8<\/td>\n<\/tr>\n
                      Each is written<\/td>\n<\/td>\n<\/td>\n500<\/td>\n90<\/td>\n8<\/td>\n<\/tr>\n
                      Expanded form<\/td>\n500 + 90 + 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                      Example:<\/p>\n\n\n\n\n\n\n
                      <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                      1068 is made of<\/span><\/td>\n<\/td>\n<\/td>\n<\/td>\n1<\/td>\n0<\/td>\n6<\/td>\n8<\/td>\n<\/tr>\n
                      Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n1000<\/span><\/td>\n<\/td>\n60<\/td>\n8<\/td>\n<\/tr>\n
                      Expanded form<\/td>\n1000<\/span> + 60 + 8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                      Example:<\/p>\n\n\n\n\n\n\n
                      <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                      243690<\/span> is made of<\/td>\n<\/td>\n2<\/td>\n4<\/td>\n3<\/td>\n6<\/td>\n9<\/td>\n0<\/td>\n<\/tr>\n
                      Each is written<\/td>\n<\/td>\n200000<\/span><\/td>\n40000<\/span><\/td>\n3000<\/span><\/td>\n600<\/td>\n90<\/td>\n0<\/td>\n<\/tr>\n
                      Expanded form<\/td>\n200000<\/span> + 40000<\/span> + 3000<\/span> + 600 + 90<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                      \n
                      \n

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

                      \n
                        \n
                      1. 329
                        \n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        329 is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n3<\/td>\n2<\/td>\n9<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n300<\/td>\n20<\/td>\n9<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n300 + 20 + 9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                      2. 762
                        \n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                      3. 1847
                        \n<\/span><\/span><\/p>\n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                      4. 6301
                        \n<\/span><\/span><\/p>\n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                      5. 16492
                        \n<\/span><\/span><\/p>\n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                      6. 74296
                        \n<\/span><\/span><\/p>\n\n\n\n\n\n\n
                        <\/th>\nmillions<\/th>\nhundred thousands<\/th>\nten thousands<\/th>\nthousands<\/th>\nhundreds<\/th>\ntens<\/th>\nones<\/th>\n<\/tr>\n
                        is made of<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Each is written<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
                        Expanded form<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n

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

                          \n
                        1. 300 +\u00a0 20\u00a0 + 9<\/li>\n
                        2. 700 +\u00a0 60\u00a0 + 2<\/li>\n
                        3. 1000<\/span> + 800 + 40 + 7<\/li>\n
                        4. 6000<\/span> + 300 + 1<\/li>\n
                        5. 10000<\/span> +\u00a0 6000<\/span>\u00a0 +\u00a0 400\u00a0 +\u00a0 90\u00a0 + 2<\/li>\n
                        6. 70000<\/span> +\u00a0 4000<\/span> +\u00a0 200\u00a0 +\u00a0 90\u00a0 + 6<\/li>\n<\/ol>\n<\/div>\n<\/div>\n
                          \n
                          \n

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

                          \n

                          Write each number from expanded form. Check your work using the answer key at the end of the exercise.<\/p>\n

                          Example: <\/strong>600 + 30 + 7 = 637<\/strong><\/p>\n

                          Example: <\/strong>7000<\/span> + 500 + 40 + 1 = 7541<\/span><\/strong><\/p>\n

                          Example: <\/strong>4000000<\/span> + 600000<\/span> + 70000<\/span> + 8000<\/span> + 900 + 3 = 4678<\/span>903<\/span><\/strong><\/span><\/p>\n

                            \n
                          1. 400 +\u00a0 10\u00a0 +\u00a0 6 =<\/li>\n
                          2. 500 +\u00a0 40\u00a0 +\u00a0 2 =<\/li>\n
                          3. 5000<\/span> +\u00a0 600\u00a0 +\u00a0 10\u00a0 +\u00a0 8 =<\/li>\n
                          4. 4000<\/span> +\u00a0 100\u00a0 +\u00a0 40\u00a0 +\u00a0 5 =<\/li>\n
                          5. 20000<\/span> + 1000<\/span> + 800 + 10 + 2 =<\/li>\n
                          6. 40000<\/span> + 200 + 5 =<\/li>\n
                          7. 30000<\/span> + 4000<\/span> + 50 + 3 =<\/li>\n
                          8. 200000<\/span> +\u00a0 50000<\/span> +\u00a0 3000<\/span> +\u00a0 400\u00a0 +\u00a0 80\u00a0 +\u00a0 3 =<\/li>\n
                          9. 300000<\/span> + 50000<\/span> +\u00a0 6000<\/span> +\u00a0 700\u00a0 +\u00a0 10\u00a0 +\u00a0 9 =<\/li>\n
                          10. 1000<\/span>000<\/span> + 400000<\/span> + 20000<\/span> + 3000<\/span> + 600 + 50 + 7 =<\/li>\n<\/ol>\n

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

                              \n
                            1. 416<\/li>\n
                            2. 542<\/li>\n
                            3. 5618<\/span><\/li>\n
                            4. 4145<\/span><\/li>\n
                            5. 21812<\/span><\/li>\n
                            6. 40205<\/span><\/li>\n
                            7. 34053<\/span><\/li>\n
                            8. 253483<\/span><\/li>\n
                            9. 356719<\/span><\/li>\n
                            10. 1423<\/span>657<\/span><\/li>\n<\/ol>\n<\/div>\n<\/div>\n

                              Topic B: Self-Test<\/h1>\n

                              Mark \/ 12\u00a0\u00a0\u00a0 Aim\u00a0\u00a0 10\/12<\/strong><\/p>\n

                                \n
                              1. Write each number in expanded form. (6 marks.)\n
                                  \n
                                1. 643<\/li>\n
                                2. 759<\/li>\n
                                3. 4821<\/span><\/li>\n
                                4. 94205<\/span><\/li>\n
                                5. 367542<\/span><\/li>\n
                                6. 1850<\/span>643<\/span><\/li>\n<\/ol>\n<\/li>\n
                                7. Write each number from its expanded form. (6 marks.)\n
                                    \n
                                  1. 300 + 60 + 9 =<\/li>\n
                                  2. 700 + 5 =<\/li>\n
                                  3. 1000<\/span> + 400 + 90 + 1 =<\/li>\n
                                  4. 20000<\/span> + 1000<\/span> + 500 + 80 + 4 =<\/li>\n
                                  5. 500000<\/span> + 40000<\/span> + 2000<\/span> + 700 + 30 + 9 =<\/li>\n
                                  6. 3000<\/span>000<\/span> + 900000<\/span> + 60000<\/span> + 8000<\/span> + 400 + 30 + 1 =<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

                                    Answers to Topic B Self-Test<\/h2>\n
                                      \n
                                    1. \n
                                        \n
                                      1. 600 + 40 + 3<\/li>\n
                                      2. 700 + 50 + 9<\/li>\n
                                      3. 4000<\/span> + 800 + 20 + 1<\/li>\n
                                      4. 90000<\/span> + 4000<\/span> + 200 + 5<\/li>\n
                                      5. 300000<\/span> + 60000<\/span> + 7000<\/span> + 500 + 40 + 2<\/li>\n
                                      6. 1000000<\/span> + 800000<\/span> + 50000<\/span> + 600 + 40 + 3<\/span><\/li>\n<\/ol>\n<\/li>\n
                                      7. \n
                                          \n
                                        1. 369<\/li>\n
                                        2. 705<\/li>\n
                                        3. 1491<\/span><\/li>\n
                                        4. 21584<\/span><\/li>\n
                                        5. 542739<\/span><\/li>\n
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