December 2018 1 42 Report
3. A. Hitunglah pengurangan2 berikut ini!
(i) 4-7 dan 7-4
(ii) -8-5 dan 5-(-8)
(iii) 23-(-4) dan -4-23
(iv) -27-(-20) dan -20-(-27)
B. Bila P dan Q sembarang bilangan bulat apakah P-Q = Q-P?
C. Apakah pengurangan pada bilangan bulat bersifat komutatif?

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