What is the next two missing numbers in this sequence:12,14 11,14 9,17 _,_?

To find the next two missing numbers in the sequence \(12, 14; 11, 14; 9, 17; \_, \_\), we need to analyze the pattern.

Let's look at the two numbers in each pair separately:

1. **First Numbers in Each Pair**: 12, 11, 9, \(\_\)
   - To see a pattern, subtract each number from the previous one:
     \[
     12 - 11 = 1, \quad 11 - 9 = 2
     \]
   - The differences are increasing by 1 each time.
   - To find the next difference, add 1 to the last difference (which is 2): \(2 + 1 = 3\).

   So, the next difference is 3. Subtracting 3 from the last number (9):

   \[
   9 - 3 = 6
   \]

   The next first number is **6**.

2. **Second Numbers in Each Pair**: 14, 14, 17, \(\_\)
   - Check the differences between the second numbers:
     \[
     14 - 14 = 0, \quad 17 - 14 = 3
     \]
   - The difference here is first 0, then 3.
   - To find a pattern, it seems the numbers increase by 3 after staying the same:
   
   Continuing this pattern (adding 3 again):
   \[
   17 + 3 = 20
   \]

   The next second number is **20**.

So, the next two missing numbers in the sequence are **6, 20**.

### Sequence with Missing Numbers Filled:
12, 14; 

Discover how to identify patterns in number sequences with this problem: 12, 14; 11, 14; 9, 17. Learn to solve similar problems involving number patterns and sequences. Suitable for students in Grades 5-7.

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