Page 10 - Steady Mate Tg1 - Book A

Matematik Tingkatan 1 Bab 1 Nombor Nisbah

Contoh 6. –12 – 4 7. –16 + (–19)
9 + (–1) –3 + 8
– 6 – 9 Lakukan operasi pada
7 + (–12) pengangka dan penyebut = –16 = –35
secara berasingan. 8 5
–15
= Perform operation on = –2 = –7
–5 numerator and denominator
separately.
= 3

–8 + (–24) –12 – 36 –8 + (– 6) × (– 4)
8. 9. 10.
9 – (–7) 4 – (–8) –22 – 42
–32 –48 –8 + 24
= = =
16 12 –64
= –2 = –4 = 16
–64
1
= –
4

J Hitung setiap yang berikut dengan pengiraan efisien. TP 3 ARAS S
Calculate each of the following with efficient computations.

Contoh 1. 297 + 276 + 224 2. 484 + 261 + 339
= 297 + 500 = 484 + 600
178 + 164 + 236
Hukum Kalis Sekutuan = 797 = 1 084
= 178 + 400 Associative Law
= 578

Contoh 3. 5 × 19 × 2 4. 4 × 16 × 5
= 5 × 2 × 19 = 4 × 5 × 16
25 × 7 × 4 = 10 × 19 = 20 × 16
Hukum Kalis Tukar Tertib
= 25 × 4 × 7 Commutative Law = 190 = 320
= 100 × 7
= 700

Contoh 5. 7 × 1 020 6. 15 × 199
= 7 × (1 000 + 20) = 15 × (200 – 1)
8 × 204 = 7 × 1 000 + 7 × 20 = 15 × 200 – 15 × 1
Hukum Kalis Agihan
= 8 × (200 + 4) Distributive Law = 7 000 + 140 = 3 000 – 15
= 8 × 200 + 8 × 4 = 7 140 = 2 985
= 1 600 + 32
= 1 632

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