Download - Bilangan bulat
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BILANGAN BULAT
--Winda Eka Ningrum--
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Home Kurikulum Materi Soal Keluar
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5. Menjumlahkan dan mengurangkan bilangan bulat.
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Standar Kompetensi
Kompetensi Dasar
Tujuan Pembelajaran
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5.3 Mengurangkan bilangan bulat
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Standar Kompetensi
Kompetensi Dasar
Tujuan Pembelajaran
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Siswa dapat melakukan operasi pengurangkan pada bilangan
bulat
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Standar Kompetensi
Kompetensi Dasar
Tujuan Pembelajaran
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Amir diantar ayahnya pergi ke sekolah
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Apersepsi
Aturan
Materi
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• Motivasi
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5 – 3 = ....
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5
-2 -1 0 1 2 3 4 5
Langkah 1
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3
-2 -1 0 1 2 3 4 5
Langkah 2
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-2 -1 0 1 2 3 4 5
Langkah 1 dan Langkah 2 digabungkan
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5 – 3 = 2 Jadi
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Aturan peraga pada garis bilangan bulat :1. Jika bilangan berupa :
• Bilangan positif menghadap ke arah bilangan positif
• Bilangan negatif menghadap ke arah bilangan negatif
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Aturan peraga pada garis bilangan bulat :2. Jika operasinya :• Penjumlahan bergerak maju ke depan
• Pengurangan bergerak mundur ke belakang
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Home Kurikulum Materi Soal Keluar
Apersepsi
Aturan
Materi
Operasi pengurangan pada bilangan bulat ada :
1. Bilangan positif dengan positif
2. Bilangan positif dengan negatif
3. Bilangan negatif dengan negatif
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44 – 2 = .... ?
Bilangan positif dengan bilangan positif
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4 – 2 = .... ?2
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45
Jadi4 – 2 = 2
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44 – 5 = .... ?
Soal
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4 – 5 = .... ?5
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45
Jadi4 – 5 = -1
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11 – (-3) = .... ?
Bilangan positif dengan bilangan negatif
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1 – (-3) = .... ? (-3)
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1(-3)
Jadi1 – (-3) = 4
Jadia – (-b) = a + b
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1(-3)
Jadi1 – (-3) = 4
Jadia – (-b) = a + b
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Soal
Berapakah hasil pengurangan dari :1. 3 – 2 =2. 4 – (-3) =
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CatatanTerlalu biasaHarus ada lembar kerja untuk siswa...terkait afektif, psikomotoriknya..Evaluasinya---pake wondershare???Aplikasinya pada siswa apa??