Solve: 40-(-10) +(-20) +(+10) -(-10)
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40 - ( - 10 ) + ( - 20 ) + ( 10 ) - ( - 10 )
- 400 - 20 + 10 - ( - 10 )
- 420 + 10 - ( - 10 )
- 410 - ( - 10 )
- 410 + 10
- 400
hope helpful for you
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