
materi pempelajaran
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•
Mathematics
•
8th Grade
•
Hard
Susi Sintawati
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5 Slides • 0 Questions
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Materi pempelajaran
By Susi Sintawati
2
1. Perkalian 4 x 2 = 8
penjelasan : 2 + 2 + 2 + 2 = 8
2. 7 x 7 x 7 = 7 x 3 = 21
penjelasan : 7 + 7 + 7 = 21
By Susi Sintawati
3
3. Bibi membeli beberapa telur itik. Setelah diperiksa, 15 butir telur busuk dan yang tidak busuk ada 60 butir. berapa banyaknya telur yang dibeli bibi semuanya?
Jawab :
Diketahui : telur yang busuk = 15 butir
telur yang tidak busuk = 60
penyelesaian :
15 + 60 = 75
jadi, yelur yang dibeli ada 75 butir
By Susi Sintawati
4
4. Wanda membeli 425 kancing baju. Setelah dipakai, sisa kancing tinggal 232 butir. Berapa Kancing yang telah dipakai Wanda?
Jawab : 425 - .... = 232
...... = 425 - 232
Agar lebih mudah dapat dikerjakan dengan cara bersusu pendek.
425
232 -
193
Jadi, kancing yang telah dipakai Winda sebanyak 193 butir
By Susi Sintawati
5
5. Adi belajar mulai pukul 07.00 sampai dengan pukul 09.00
berapa lama adi belajar?
jawab :
Adi mulai belajar pukul 07.00
Adi selesai belajar pukul 09.00
lama Adi belajar = 09.00 - 07.00
= 2 Jam
Jadi, lama Adi belajar adalah 2 jam
By Susi Sintawati
Materi pempelajaran
By Susi Sintawati
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