Hitunglah. 1. (+2) – (+9) 2. (+1) – (-5) 3. (-6) – (-17) 4. 0 – (-12)
Hitunglah.
1. (+2) – (+9)
2. (+1) – (-5)
3. (-6) – (-17)
4. 0 – (-12)
Pembahasan:
1. (+2) – (+9) = 2 – 9 = -7
2. (+1) – (-5) = 1 + 5 = 6
3. (-6) – (-17) = -6 + 17 = 11
4. 0 – (-12) = 0 + 12 = 12
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