2550 - [51 0 - {270 - (90 - 80 + 70)}]
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Answered by
5
Answer:
2230
Step-by-step explanation:
2550-[510-{270-90+80-70}]
=2550-[510-270+90-80+70]
=2550-510+270-90+80-70
=2230
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