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Perhatikan aturan

Operasi Penjumlahan dan Pengurangan Bilangan Bulat dengan Kartu Bilangan oleh Sugiati Tabrang , S.Pd. Perhatikan aturan. Kartu Positif (+). Kartu Negatif (-). Jika kartu (+) bertemu kartu (-) hasilnya NOL (0). + = NOL (0). contoh.

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Perhatikan aturan

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  1. OperasiPenjumlahandanPenguranganBilanganBulatdenganKartuBilanganolehSugiatiTabrang, S.Pd

  2. Perhatikanaturan KartuPositif (+) KartuNegatif (-) Jikakartu (+)bertemukartu (-) hasilnya NOL (0) + = NOL (0)

  3. contoh + = 4 + 3 = 7 + = -3 + (- 2 ) = - 5

  4. contoh + = 6 + 2 = 8 + = -4 + (- 3 ) = - 7

  5. contoh - = 5 - 2 = 3 - = -6 - (- 2 ) = - 4

  6. contoh - = 6 - 2 = 4 - = -8 - (- 3 ) = - 5

  7. + = ??? 5 + ( -2 ) = ? 5 + ( -2 ) = 3

  8. + = ??? 4 + ( -7 ) = ? 4 + ( -7 ) = - 3

  9. - = ??? 4 - ( -7 ) = ? INGAT : PenguranganadalahInvers (lawan) daripenjumlahan, jadimengurangsamadenganmenjumlahdenganlawan (kebalikan) daribilangantersebut + = ??? 4 - ( -7 ) = 11

  10. - = ??? - 3 - ( -7 ) = ? + = ??? -3 - ( -7 ) = 4

  11. SoalHitunglah1. 8 + 122. -4 + (-7)3. 20 – 54. -10 – (-7)5. -10 + 186. 15 + (-20)7. 10 – 178. -7 – (-17)

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