
PENJUMLAHAN BILANGAN BULAT
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
Eny Rubiyanti
Used 9+ times
FREE Resource
4 Slides • 5 Questions
1
PENJUMLAHAN
BILANGAN BULAT
Klas 7
Semester Gasal
oleh
Eny Rubiyanti
By Eny Rubiyanti
2
Operasi Penjumlahan Bilangan Bulat
Sifat-sifat operasi penjumlahan bilangan bulat :
Tertutup Untuk setiap bilangan bulat a dan b, jika a + b = c, maka c juga bilangan bulat.
Komutatif a + b = b + a
Asosiatif (a + b) + c = a + (b + c)
Unsur Identitas a + 0 = 0 + a = a
3
4
Oleh :
Eny Rubiyanti
Saatnya Kuis
Jumlah soal =5
2 Pilihan ganda, 2 Isian dan satu Uraian
5
Multiple Choice
65 + 13 +35 + 57 = …
170
155
75
70
6
Multiple Choice
125 – (-75) – 45 = …
5
10
110
155
7
Fill in the Blank
Nila mempunyai 6 pasang sepatu di rumahnya, Nila memberikan 2 pasang sepatunya kepada sepupunya.
Tinggal berapa pasang sepatu yang dimiliki oleh Nila?
8
Fill in the Blank
Seorang penyelam mula-mula menyelam 2 meter di bawah permukaan air laut, kemudian ia turun lagi menyelam hingga kedalaman 5 meter di bawah permukaan air laut.
Berapa selisih kedalaman mula-mula dengan yang dicapai penyelam setelah turun?
9
Open Ended
Tentukan hasil penjumlahan bilangan bulat berikut
130 + ( – 225) + 58 = …
PENJUMLAHAN
BILANGAN BULAT
Klas 7
Semester Gasal
oleh
Eny Rubiyanti
By Eny Rubiyanti
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