
MATEMATIKA
Presentation
•
Mathematics
•
2nd Grade
•
Hard
Dean Subekti
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5 Slides • 0 Questions
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by Dean Subekti, S.Pd
2
3
Penjumlahan merupakan penambahan sekelompok bilangan atau lebih menjadi suatu bilangan yang disebut jumlah. Misalnya di gambar di samping, terdapat tiga apel di sisi kiri dan dua apel di sisi kanan, menghasilkan jumlah lima apel. Dalam simbol matematika, ini dilambangkan "3 + 2 = 5", disebut "3 ditambah 2 sama dengan 5".
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Pengurangan ditandai dengan tanda minus, −. Misalnya, pada gambar di sebelahnya, 5 − 2 buah persik—artinya 5 buah persik dengan 2 buah yang diambil, menghasilkan total 3 buah persik. Oleh karena itu, selisih dari 5 dan 2 adalah 3; yaitu, 5 − 2 = 3.
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1. 5 + 7 =
2. 8 + 5 =
3. 11 + 8 =
4. 12 + 8 =
5. 13 + 9 =
by Dean Subekti, S.Pd
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