Penjumlahan dan Pengurangan Bilangan Bulat
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
Niamatus Saadah
Used 4+ times
FREE Resource
4 Slides • 3 Questions
1
2
Bilangan bulat terdiri atas himpunan bilangan bulat negatif {…, -3, -2, -1}, nol {0}, dan himpunan bilangan bulat positif {1, 2, 3, ….}
3
Penjumlahan
Penjumlahan pada bilangan bulat dapat diselesaikan dengan menggunakan garis bilangan.
Contoh 3
Hitunglah penjumlahan –3 dan –4!
-3 + (-4) = -7
4
Pengurangan
Pengurangan dinyatakan sebagai penjumlahan dengan lawan bilangan pengurang
Bandingkan hasil penjumlahan dan pengurangan berikut:
1)4 – 3 = 1
2)4 + (–3) = 1
3)–5 – (–2) = -3
4)–5 + 2 = -3
Ternyata:
4 – 3 = 4 + (-3)
5
Multiple Choice
(-42) + 27 =
-15
15
-20
20
6
Multiple Choice
-15 – 9 – 12
-30
30
36
-36
7
Open Ended
Tulis jawabanmu dibawah ini !
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