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Example:
Prime factors of 12
2, 2, 3
2, 3, 3
2, 3, 6
Example: 23
3
8
4
Example:
3:7
7
3
4
7
3
7
Example: Find the median of the following: 1, 2, 1, 5, 5
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Example: -2 x -3 =
6
-5
-1
Example:
-4 x -2 =
8
Example: 22
4
22
2
Example: 23 =
8
Example: -2 + -3 =
-5
5
-1
Example:
-4 + -2 =
-6
Example: -2 - -3 =
1
-5
-1
Example: On a number line, Sally places a coin on -3 and moves it 2 places to the left. Which integer would her coin be now on?
-5
5
-1
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