Hitunglah. 1. (+8) – (+2) 2. (+3) – (+7) 3. (+5) – (-4) 4. (-12) – (+9)
Hitunglah.
1. (+8) – (+2)
2. (+3) – (+7)
3. (+5) – (-4)
4. (-12) – (+9)
5. (-27) – (-15)
6. (-16) – (-16)
7. (+38) – (-12)
8. (-10) – 0
9. 0 – (-24)
Pembahasan:
1. (+8) – (+2) = 8 – 2 = 6
2. (+3) – (+7) = 3 – 7 = -4
3. (+5) – (-4) = 5 + 4 = 9
4. (-12) – (+9) = -12 – 9 = -21
5. (-27) – (-15) = -27 + 15 = -12
6. (-16) – (-16) = -16 + 16 = 0
7. (+38) – (-12) = 38 + 12 = 50
8. (-10) – 0 = -10
9. 0 – (-24) = 24
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