a) 320+ [(-15)+(30-331)] b) (206-432)+[168-(200]

Question

a) 320+ [(-15)+(30-331)]
b) (206-432)+[168-(200]

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Allison 2 tuần 2021-11-24T19:24:26+00:00 2 Answers 6 views 0

Answers ( )

    0
    2021-11-24T19:26:09+00:00

    `a“/` `320 + [(-15) + (30 – 331)]`

    = `320 + [(-15) + (- 301)]`

    = `320 + (- 316)`

    = `4 `

    `b“/` `(206 – 432) + (168 – 200)`

    = `(- 226) + (- 32)`

    = `- 258`

     

    0
    2021-11-24T19:26:25+00:00

    Đáp án:

    a, 4 

    b, – 258

    Giải thích các bước giải:

    a, 320 + [(-15) + (30 – 331)]

    = 320 + [(-15) + (- 301)]

    = 320 + (- 316)

    = 4 

    b, (206 – 432) + (168 – 200)

    = (- 226) + (- 32)

    = – 258

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