Matematika

Pertanyaan

1. hasil dari akar pangkat 3 dari 8000?
2. 54 × 20 - 640 : (-8)=
3. 750 - 75 × (-4) + 184 : 8
4. (300 + 1.100) : (-7) × 18 - 60

2 Jawaban

  • 1) ³√8000 = 20

    2) 54 x 20 - 640 : (-8)
    ==> 1080 + 80
    ==> 1160

    3) 750 - 75 x (-4) + 184 : 8
    ==> 750 - ( 75 x -4 ) + ( 184 : 8 )
    ==> 750 - (-300) + 23
    ==> 750 + 300 + 23
    ==> 1073

    4) ( 300 + 1.100 ) : (-7) x 18 - 60
    ==> 1.400 : (-7) x 18 - 60
    ==> -200 x 18 - 60
    ==> -3600 - 60
    ==> -3600 + (-60)
    ==> - 3660

    Semoga Bermanfaat
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  • Mapel : Matematika
    Kelas : V SD
    Bab : Operasi Bilangan

    Pembahasan :
    1||

    ³√2000
    = (2000)^1/3
    = (20³)^1/3
    = 20

    2||

    54 x 20 - 640 : (-8)
    = (54 x 20) - (640 : -8)
    = 1080 - (-80)
    = 1080 + 80
    = 1160

    3||

    750 - 75 x (-4) + 184 : 8
    = 750 - (75 x -4) + (184 : 8)
    = 750 - (-300) + 23
    = 750 + 300 + 23
    = 1073

    4|| (300 + 1100) : (-7) x 18 - 60
    = (1400) : (-7) x 18 - 60
    = (-200) x 18 - 60
    = (-3600) - 60
    = -3660

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