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Hitunglah. 1. (7 – 19) : 3 2. (-2) × (4 – 9) 3. 21 : (-2 – 5) 4. {6 – (-3)} × 8

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Hitunglah.

1.     (7 – 19) : 3

2.     (-2) × (4 – 9)

3.     21 : (-2 – 5)

4.     {6 – (-3)} × 8

Pembahasan:

1.     (7 – 19) : 3 = -12 : 3 = -4

2.     (-2) × (4 – 9) = (-2) × (-5) = 10

3.     21 : (-2 – 5) = 21 : (-7) = -3

4.     {6 – (-3)} × 8 = 9 × 8 = 72

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