Mathematics Handbook/Subtraction: Difference between revisions
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# a - (a) = 0 → Any number minus itself leaves zero | # a - (a) = 0 → Any number minus itself leaves zero | ||
# a - (-a) = 2a → Any number minus its opposite (additive inverse) leaves double the number | # a - (-a) = 2a → Any number minus its opposite (additive inverse) leaves double the number | ||
#(-a)- (a) = -2a → Any negative number minus its opposite (additive inverse) leaves double negative of that number | #(-a) - (a) = -2a → Any negative number minus its opposite (additive inverse) leaves double negative of that number | ||
{{BookCat}} | {{BookCat}} | ||
Latest revision as of 18:11, 20 November 2010
- a - 0 = a → Any number minus zero leaves that same number
- a - (a) = 0 → Any number minus itself leaves zero
- a - (-a) = 2a → Any number minus its opposite (additive inverse) leaves double the number
- (-a) - (a) = -2a → Any negative number minus its opposite (additive inverse) leaves double negative of that number