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Matematik Tingkatan 1 Bab 1 Nombor Nisbah
Operasi Asas Aritmetik yang Melibatkan Integer
1.2 Basic Arithmetic Operations Involving Integers BUKU TEKS ms. 7 – 13
MESTI TAHU & INGAT
1. Operasi tambah yang melibatkan integer: Operasi tolak yang melibatkan integer:
Operation of addition involving integers: Operation of subtraction involving integers:
• (+a) + (+b) = a + b • (+a) – (+b) = a – b
• (+a) + (–b) = a – b • (+a) – (–b) = a + b
• (–a) + (+b) = –a + b • (–a) – (+b) = –a – b
• (–a) + (–b) = –a – b • (–a) – (–b) = –a + b
2. Penambahan integer positif Penolakan integer positif
Addition of positive integers Subtraction of positive integers
–3 –2 –1 0 1 2 3 –3 –2 –1 0 1 2 3
Penambahan integer negatif Penolakan integer negatif
Addition of negative integers Subtraction of negative integers
D Selesaikan setiap yang berikut. TP 3 ARAS R
Solve each of the following.
Contoh 1. –11 + (+4) = –11 + 4
= –7
–1 + (+5) = –1 + 5
= 4 Bergerak 4 unit ke kanan
Moves 4 units to the right
Bergerak 5 unit ke kanan
Moves 5 units to the right
–12 –11 –10 –9 –8 –7 –6 –5
–2 –1 0 1 2 3 4 5
Contoh 2. 4 + (–5) = 4 – 5
= –1
–1 + (–3) = –1 – 3
= –4 Bergerak 5 unit ke kiri
Moves 5 units to the left
Bergerak 3 unit ke kiri
Moves 3 units to the left
–2 –1 0 1 2 3 4 5
–7 –6 –5 –4 –3 –2 –1 0
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