Hitunglah. 1.(7 – 19) : 3 2.(-2) × (4

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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