1. -400×16 -900:(-30)+1400=..... 2. 3000 + 1.500 : (-50) -200 × (-7)=..... 3. 800 - 900 + 650 × (-8) :30=..... 4. 1800 : (-45) × 35 - 40 × 45=..... 5. 25 × 90 +

Jawabannya:

1. -400×16-900:(-30)+1400
= -6400-900:(-30)+1400
= -6400-(-30)+1400
= -6370+1400
= -4970

2. 3000+1500:(-50)-200×(-7)
= 3000+(-30)-(-1400)
= 2970-(-1400)
= 4370

3. 800-900+650×(-8):30
= 800-900+(-5200):30
= -100+(-173,3)
= -273,3

4. 1800:(-45)×35-40×45
= 1800:(-1575)-1800
= -1,14 - 1800
= -1801,14

5. 25×90+4500:(-9)+(-16)×60
= 2250+4500:(-9)+(-960)
= 2250+(-500)+(-960)
= 1750+(-960)
= 790

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