
Sifat Operasi Hitung
Presentation
•
Mathematics
•
4th Grade
•
Practice Problem
•
Hard
Gita Apandi
Used 3+ times
FREE Resource
7 Slides • 0 Questions
1
MATEMATIKA
sifat operasi hitung
2
SIFAT OPERASI HITUNG
sifat penyebaran
(distributif)
Contoh:
Penjumlahan ~ (a+b)+c=a+(b+c) ~
(11 + 5) + 3 = 11 + (5 + 3) = 19
Perkalian ~ (axb)xc=ax(bxc) ~
(12 x 2) x 4 = 12 x (2 x 2) = 96
sifat pertukaran
(komutatif)
Contoh:
Penjumlahan ~ a + b = b + a ~
2 + 8 = 8 + 2 = 10
Perkalian ~ a x b = b x a ~
9 x 5 = 5 x 9 = 10
Contoh:
Perkalian terhadap Penjumlahan
~ a x (b + c)=(a x b) + (a x c) ~
2 x (10 + 3) = (2 x 10) + (2 x 3) = 26
Perkalian terhadap Pengurangan
~ a x (b - c)=(a x b) - (a x c) ~
4 x (10 - 2) = (4 x 10) - (4 x 2) = 32
sifat pengelompokkan
(asosiatif)
3
SIFAT PERTUKARAN (KOMUTATIF)
Contoh:
Penjumlahan
a + b = b + a
2 + 8 = 8 + 2 = 10
Perkalian
a x b = b x a
9 x 5 = 5 x 9 = 45
Rumus
4
5
SIFAT PENGELOMPOKKAN (ASOSIATIF)
Contoh:
Penjumlahan
(a + b) + c = a + (b + c)
(11 + 5) + 3 = 11 + (5 + 3) = 19
Perkalian
(a x b) x c = a x (b x c)
(12 x 2) x 4 = 12 x (2 x 4) = 96
Rumus
6
7
(7 + 8) + 9 = …
14 + (12 + 17) = …
(24 + 23) + 27 = …
(37 + 29) + 30 = …
42 + (37 + 46) = …
Soal latihan:
1.
2.
3.
4.
5.
(3 x 4) x 6 = …
2 x (7 x 9) = …
(9 x 11) x 13 = …
12 x (14 x 20) = …
(21 x 24) x 19 = …
Soal latihan:
1.
2.
3.
4.
5.
MATEMATIKA
sifat operasi hitung
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