cho mình xin câu trả lời nhanh ạ

Đáp án + Giải thích các bước giải:

 ` ( 24 - 234 ) + ( 234 - 24-77) `

` = 24 - 234 + 234 - 24 - 77 `

` = (24-24) -( -234 + 234)-77 `

` = 0 - 0 -77 `

` = -77 `

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` b, (13-135+49 ) - (13+49) `

` = 13 - 135 + 49 - 13-49 `

` = (13-13) + ( 49-49) - 135 `

` = 0+0-135 `

` = -135 `

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` c, 159 - 524 - (59-424) `

` = 159 - 524 -59 + 424 `

` = ( 159-59 ) - ( 524 - 424 ) `

` = 100 - 100 `

` = 0 `

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` d, ( 36 + 79 ) + (145 -79-36) `

` = 36+79 + 145 - 79-36 `

` = (36-36) + (79-79) + 145 `

` = 0 + 0 + 145 `

` = 145 `

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` e, 334 - ( 117 + 234) + (42 +117) `

` = 334-117-234+42+117 `

` = (334 -234) - (117-117) + 42 `

` = 100 - 0 + 42 `

` = 142 `

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` f, 271 - [-43 + 271 - (-17)] `

` = 271 + 43 - 271 + 17 `

` = 43-17 +(271-271) `

` = 26 + 0 `

` = 26 `

` color[pink][#Taki] `