Question

988+ (- 1200)+600+400

Answer 1

988-1200+600+400
988+1000-1200
1988-1200
788

Hope it helps
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Answer 2

Hola Mate !!

Here's your answer :-

988 + (-1200) + 600 + 400
= 1988 - 1200
= 788

Hope it helps

Mark me as brainliest if it's correct ;-)