Matematika

Pertanyaan

-100-99-98-...-2-1-0+1+2+...+48+49+50

1 Jawaban

  • Bab Pola Bilangan
    Matematika SMP Kelas VII

    -100 - 99 - 98 - ..... + 0 + 1 + ..... + 50

    -50 + 50 = 0
    -49 + 49 = 0
    .
    .
    -1 + 1 = 0

    tersisa -100 - 99 - 98 - ... - 52 - 51 = ?

    -100
    -51 - 99 = -150
    -52 - 98 = -150
    -53 - 97 = - 150
    -54 - 96 = -150
    -55 - 95 = - 150
    - 56 - 94 = - 150
    - 57 - 93 = - 150
    - 58 - 92 = - 150
    - 59 - 91 = -150
    -50 - 90 = -150
                    -------- +
                       -150 x 10 = -1.500

    -61 sampai -70 = -1.500

    -71 - 79 = -150
    -72 - 78 = -150
    - 73 - 77 = - 150
    - 74 - 76 = - 150
                    ------------ +
                      -600

    total = -100 - 1.500 - 1.500 - 600 - 75 = -3.775

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