simplify 639-72÷9+3-3 of 20+80÷2
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question:- 639-72÷9+3-3of20+80÷2
= 639-72÷9+3-60+80÷2
= 639-8+3-60+40
= 639+3+40-8-60
= 682-68
= 614
This is the answer
........... hope it helps
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