

MATEMATIKA
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•
Mathematics
•
1st - 5th Grade
•
Hard
I PAING
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6 Slides • 0 Questions
1
MATEMATIKA
Oleh: I Wayan Paing,S.Pd
BILANGAN BULAT
2
GARIS BILANGAN
Semakin ke kanan (arah menghadap) angka semakin besar, semakin ke kiri, angka semakin kecil.
3
Dari gambar di atas dapat dilihat bahwa:
- 20 lebih kecil dari (- 18) karena letak (-20) di sebelah kiri dari (-18)
perhatikan angka (- 12) dan angka 12. mana yang terletak di sebelah kiri? Ternyata (-12) berada di sebelah kiri 12 sehingga (-12) lebih kecil dari 12 atau sebaliknya 12 lebih besar dari (-20)
4
Buatlah garis bilangan seperti di bawah ini pada buku gambar.
Gunakan garis bilangan tersebut untuk mengerjakan Latihan soal MATEMATIKA di buku Matematika hal. 17, nomor 1 - 4.
5
INGAT-INGAT DULU
Lawan Bilangan
contoh: 20 lawan bilangannya - 20 (negatif 20)
-45 lawan bilangannya 45
begitu seterusnya.
BILANGAN BULAT YANG DITAMBAHKAN DENGAN LAWAN BILANGANNYA HASILNYA SAMA DENGAN NOL (0)
CONTOH: 20 + (-20) = 0
-45 + 45 = 0
6
PENGGUNAAN LAWAN BILANGAN DALAM PENJUMLAHAN DAN PENGURANGAN BILANGAN BULAT
pada pembelajaran berikutnya,ya....
MATEMATIKA
Oleh: I Wayan Paing,S.Pd
BILANGAN BULAT
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