Addition & Subtraction of Two Integers Fadjar Shadiq

Personal Identity Fadjar Shadiq, M.App.Sc Place and Date of Birth: Sumenep, 20-4-55 Education: Unesa and Curtin University of Technology, Perth, WA Experience Guru SMA dan Instruktur PKG Matematika di Kupang (0274)880762; 08156896973 fadjar_p3g@yahoo.com & www.fadjarp3g.wordpress.com

Mathematics is the queen of science and Arithmetic is the queen of Mathematics

Find the result of: -5 -4 -3 -2 -1 1 2 3 4 5 Find the result of: 2 + 3; 2 + (–3); –2 + 3; –2 + (–3) 2 – 3; 2 – (– 3); – 2 – 3; –2 – (–3)

Calculate 2 + 3 2 1 -1 2 -2 3 -3 4 -4 5 -5 3 So, 2 + 3 = 5

Calculate 2 + (–3) 2 1 -1 2 -2 3 -3 4 -4 5 -5 – 3 So, 2 + (– 3) = –1

Calculate –2 + 3 –2 1 -1 2 -2 3 -3 4 -4 5 -5 3 So, – 2 + 3 = 1

1 -1 2 -2 3 -3 4 -4 5 -5 Calculate –2 + (– 3) – 2 – 3 -1 2 -2 3 -3 4 -4 5 -5 – 3 So, – 2 + (– 3) = – 5

Calculate 2 – (–3) 2 1 -1 2 -2 3 -3 4 -4 5 -5 –(– 3) So, 2 – (– 3) = 5

Calculate 2 – 3 2 1 -1 2 -2 3 -3 4 -4 5 -5 –(+3) So, 2 – 3 = –1

Calculate – 2 – 3 -2 1 -1 2 -2 3 -3 4 -4 5 -5 – 3 So, – 2 – 3 = – 5

1 -1 2 -2 3 -3 4 -4 5 -5 Calculate – 2 – (– 3) – 2 – 3 -1 2 -2 3 -3 4 -4 5 -5 – 3 So, – 2 – (– 3) = 1