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1) D

2) C

3) B

4) -8 + 6 = -2 ===> B 

5) -800 + 150 = -650 ===> C

6) 5 - 7 = -2 ===> A

7) x + 8 = -2 ===> x = -2 - 8 ===> x = -10 ===> A

8) A

9) D

10) B

11) 6 - x = -5 ===> x = 6 + 5 ===> x = 11 ===> C

12) 1800 - 240 + 100 = 1.660 m

semoga jelas dan membantu ya

1. C

2. C

3. B

4. -8 + 6 = -2 ( B )

5. -800 + 150 = -650 (C )

6. 5 - 7 = -2 ( A )

7. x + 8 = -2
    x = -2 - 8
    x = -10 ( A )

8. A

9. D

10. B

11. 6 - x = -5
      6 + 5 = x
      x = 11  ( C )

12. 1.800 - 240 + 100 = 1.660