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Hitunglah. 1. -3 + (-2) – (-9) 2. 8 – (+7) – 5

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Hitunglah.

1.     -3 + (-2) – (-9)

2.     8 – (+7) – 5

3.     -2 – (-3) + 7 + (-4)

4.     3 + (-8) – (-5) – 1

Pembahasan:

1.     -3 + (-2) – (-9) = -3 – 2 + 9 = 4

2.     8 – (+7) – 5 = 8 – 7 – 5 = -4

3.     -2 – (-3) + 7 + (-4) = -2 + 3 + 7 – 4 = 4

4.     3 + (-8) – (-5) – 1 = 3 – 8 + 5 – 1 = -1

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