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3 It is 12 more than -9 and 12 less than 15 9 + 15 = 24 24/2 = 12 -9 + 12 = 3 15 - 12 = 3
The difference between two numbers is determined by subtracting the smaller number from the larger number. For example the difference between 12 and 9 is: 12-9=3. For negative integers, you will see that the difference is the total distance. For example, the difference between (-12) and 9 is 9-(-12) when you simplify by eliminating the double sign, the two minus signs become one plus sign: 9+12=21. More simply put, you will have to travel 12 to get from (-12) to zero, then another 9 to travel the total distance (difference) of 21.
108 = 12 x 9
The first integer after 8.3 is 9, and the first one before 12.3 is 12. So, 9, 10, 11, and 12 are between those numbers. That means there are 4 integers between them.
The integers between 4 and 12 are 5, 6, 7, 8, 9, 10, and 11. Other numbers between 4 and 12 are √19, 6 1/2, and 11.987654321. There are infinitely many numbers between 4 and 12.