Matematika

Pertanyaan

1. (5+12):(3-4)x2+7=
2. ((50+25:15):5)+8x(-3)
3. 3 - 2 + 5 x4 =
4. 3+4:2-5x4
5. 24 x 2 : 8

1 Jawaban

  • 1. (5 + 12) ÷ (3 - 4) × 2 + 7
    = 17 ÷ (-1) × 2 + 7
    = (-17) × 2 + 7
    = (-34) + 7
    = (-27)

    2. ((50 + 25 ÷ 15) ÷ 5) + 8 × (-3)
    = ((75 ÷ 15) ÷ 5) + (-24)
    = (5 ÷ 5) + (-24)
    = 1 + (-24)
    = (-23)

    3. 3 - 2 + 5 × 4
    = 1 + 20
    = 21

    4. 3 + 4 ÷ 2 - 5 × 4
    = 3 + 2 - 20
    = 5 - 20
    = (-15)

    5. 24 × 2 ÷ 8
    = 48 ÷ 8
    = 6

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