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Additon and subtraction of Integers
Last updated at Sept. 9, 2021 by Teachoo
Ex 1.1, 8 Verify a – (– b) = a + b for the following values of a and b. (i) a = 21, b = 18 Rough + & − becomes − + & + becomes + − & − becomes + a = 21, b = 18 a − (−b) = 21 − (−18) = 21 + 18 = 39 a + b = 21 + 18 = 39 ∴ a − (−b) = a + b