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Subtract the following
publish date: 1969/12/31 00:00:00 UTC
- -6 -4 = (1)
- 3 - (-5) = (2)
- 7 - 23 = (3)
Correct Answer
(1) -6
(2) 3
(3) 7
Explanation
To find each difference, we will apply the rule for subtraction: Add the first integer to the opposite of the integer to be subtracted. It is easy to make an error when subtracting signed numbers. We will probably be more accurate if we write each subtraction as addition of the opposite.
Reference
Mathematics for college students