5. Simplify: 280 + (-120) - (-320) + 50 = ?
(A) 510
(B) 530
(C) 630
(D) 570
Ans is 530
280+(-120)-(-320)+50
280-120+320+50
280-120+370
160+370
=530
Answers
Answered by
1
Answer:
answer of these is 530 question
Answered by
1
Answer:
answer is B
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