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va rog,ajutati-ma la acest ex!: 250x2:(1000:100)+550-(720:8×5)-150. ​

Răspuns :

250×2:(1000:100)+550-(720:8×5)-150=

250×2:10+550-(90×5)-150=

250×2:10+550-450-150=

500:10+550-450-150=

50+550-450-150=

600-450-150=

150-150=0

250×2:(1000:100)+550-(720:8×5)-150= 0

1) 1000:100=10

2) 720:8=90

3) 90×5=450

4) 250×2=500

5) 500:10=50

50+550-450-150=0

1) 50+550=600

2) 600-450=150

3) 150-150=0