Q: How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 3?

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952 of them.

For each pair of such integers, find the difference between the absolute values of the two integers and allocate the sign of the bigger number to it.

None. Integers can be negative, absolute values cannot. Absiolute values can be rational or irrational fractions, integers cannot.

Find the difference between the two numbers and attach the sign that belongs to the number with the bigger absolute value.

28

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952 of them.

The distance between two integers is the difference.

For each pair of such integers, find the difference between the absolute values of the two integers and allocate the sign of the bigger number to it.

Yes.

None. Integers can be negative, absolute values cannot. Absiolute values can be rational or irrational fractions, integers cannot.

Find the difference between the two numbers and attach the sign that belongs to the number with the bigger absolute value.

-4

subract the number from the number, simple, at least that is what i found

There are 120 of them.

28

Yes, the difference between two integers is always a whole number.

Fractions are integers divided by integers. Percentages are the number of hundredths.