Pengurangan dalam bilangan bulat negatif bisa dirubah ke bentuk penjumlah
a-b= a+ (-b); contoh 2-3= 2 + (-3)= -1
Percobaan :
4 -2 =….
Jawab = 4+ (-2) = 2
7 -15 =….
Jawab = 7 + (-15) =-8
-a-b=-a + (-b); contoh -2-3 = -2 + (-3) = -5
Percobaan :
-5 -12 =…
Jawab = -5 + (-12) =-17
-7 -3 =….
Jawab = -7 + (-3) = -10
a- (-b)= a+b; contoh 2-(-3) = 2+3= 5
Percobaan :
3 – (-9) =…
Jawab: 3 + 9 =12
12 – (-27)=…
Jawab = 12 + 27= 39
-a-(-b)=-a +b; contoh -2 +3 = 1
Percobaan :
-9 – (-6) =…
Jawab : -9 + 6 = -3
-10 – (-17)=…
Jawab : -10+ 17 = 7
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