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10-1 2-2 3-3 4-4 5-5
Hitunglah 2 + (–4)
– 4
Berarti, 2 + (–4) = –2
2
10-1 2-2 3-3 4-4 5-5
Hitunglah 2 - 4
4
Berarti, 2 - 4 = –2
2
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