{"id":197,"date":"2024-08-22T16:37:09","date_gmt":"2024-08-22T16:37:09","guid":{"rendered":"https:\/\/learnx.ca\/mt\/?page_id=197"},"modified":"2025-08-02T15:14:03","modified_gmt":"2025-08-02T15:14:03","slug":"coding-numbers","status":"publish","type":"page","link":"https:\/\/learnx.ca\/mt\/coding-numbers\/","title":{"rendered":"CODING PUZZLES"},"content":{"rendered":"\n

[Solutions<\/a> are shown after the puzzles]<\/p>\n\n\n\n

Coding Puzzle 1: Number patterns (Scratch)<\/h4>\n\n\n\n

Go to https:\/\/scratch.mit.edu\/projects\/453644929\/editor<\/a><\/p>\n\n\n\n

Run the code. You should get the list of numbers shown below.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

1.<\/strong> Edit the code to get each of the following:<\/p>\n\n\n\n

    \n
  1. <\/li>\n<\/ol>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    2.<\/strong> Edit the code to list the odd numbers 1-19 in reverse order: 19, 17, 15, 13, 11, 9, 7, 5, 3, 1.<\/p>\n\n\n\n

    \n\n\n\n

    Coding Puzzle 2: Number sums (Scratch)<\/h4>\n\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n\n
      \n
    1. Go to https:\/\/scratch.mit.edu\/projects\/457027214\/editor<\/a><\/li>\n\n\n\n
    2. Run the code. You should get the lists of numbers and sums shown on the right.<\/li>\n\n\n\n
    3. Edit the code to list and find the sum of numbers 10, 20, 30, and 40. Can you predict their sum?<\/li>\n\n\n\n
    4. Edit the code to list and find the sum of numbers 100, 200, 300, and 400. Can you predict their sum?<\/li>\n\n\n\n
    5. Edit the code to list and find the sum of numbers 11, 22, 33, and 44. Can you predict their sum?<\/li>\n\n\n\n
    6. Edit the code to list and find the sum of numbers 111, 222, 333, and 444. Can you predict their sum?<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n

      Coding Puzzle 3: Number patterns (Python)<\/h4>\n\n\n\n

      EVEN NUMBERS<\/strong><\/p>\n\n\n

      \n
      \"\"<\/figure>\n<\/div>\n\n\n
        \n
      1. Go to cscircles.cemc.uwaterloo.ca\/console<\/a> and enter and run the code below. It will list the first 5 even numbers.<\/li>\n<\/ol>\n\n\n\n
        \"\"<\/figure>\n\n\n\n
          \n
        1. Edit the code to list the first 10 even numbers.<\/li>\n\n\n\n
        2. Edit the code to list the even numbers 6 to 20.<\/li>\n<\/ol>\n\n\n\n

          ODD<\/strong> NUMBERS<\/strong><\/p>\n\n\n\n