Page 41 - Hybrid PBD Matematik TG3_Edisi Guru

Matematik Tingkatan 3 Bab 2
8. Tulis nombor berikut dalam bentuk piawai. SP 2.2.1 TP3
Write the following numbers in standard form.

(i) 345 (ii) 0.126
= 3.45 × 100 = 1.26 × 0.1
2
= 3.45 × 10 = 1.26 × 1 (i) 345 = 3.45 × 10 2 (ii) 0.126 = 1.26 × 10 –1
10
–1
= 1.26 × 10 Alihkan titik perpuluhan Alihkan titik perpuluhan
2 tempat ke kiri, maka 1 tempat ke kanan, maka
n = 2 n = –1
Move the decimal point Move the decimal point
2 places to the left, then 1 place to the right, then n = –1
n = 2

(a) 23 000 (b) 5 623 (c) 781 900 (d) 1 400 000
= 2.3 × 10 000 = 5.623 × 1 000 = 7.819 × 100 000 = 1.4 × 1 000 000
= 2.3 × 10 4 = 5.623 × 10 3 = 7.819 × 10 5 = 1.4 × 10 6

(e) 0.0042 (f) 0.01873 (g) 0.0000338 (h) 0.00052
= 4.2 × 0.001 = 1.873 × 0.01 = 3.38 × 0.00001 = 5.2 × 0.0001
= 4.2 × 10 –3 = 1.873 × 10 –2 = 3.38 × 10 –5 = 5.2 × 10 –4

9. Ungkapkan setiap berikut sebagai nombor tunggal. SP 2.2.1 TP3
Express each of the following as a single number.

(i) 6 × 10 4 (ii) 5.06 × 10 –1
= 6 × 10 000 = 5.06 × 1
= 60 000 10 (i) 6 × 10 = 60 000 (ii) 5.06 × 10 = 0.506
–1
4
= 5.06 × 0.1
= 0.506 n = 4, alihkan titik n = –1, alihkan titik
perpuluhan perpuluhan
4 tempat ke kanan 1 tempat ke kiri
n = 4, move the decimal point n = –1, move the decimal point
4 places to the right 1 place to the left

(a) 8 × 10 (b) 9.3 × 10 (c) 1.82 × 10 (d) 7.265 × 10
8
6
7
5
= 8 × 100 000 = 9.3 × 1 000 000 = 1.82 × 10 000 000 = 7.265 × 100 000 000
= 800 000 = 9 300 000 = 18 200 000 = 726 500 000
(e) 3 × 10 (f) 2.7 × 10 (g) 3.023 × 10 (h) 5.36 × 10
–4
–5
–2
–6
= 3 × 0.01 = 2.7 × 0.0001 = 3.023 × 0.00001 = 5.36 × 0.000001
= 0.03 = 0.00027 = 0.00003023 = 0.00000536
10. Isikan petak kosong dengan 10 yang betul. SP 2.2.1 TP2
n
Fill in the blanks with the correct 10 .
n
(a) 1 megajoule = 1 × 10 6 joule (b) 1 miliampere = 1 × 10 –3 ampere
1 milliampere ampere

(c) 1 kilowatt = 1 × 10 3 watt (d) 1 nanogram = 1 × 10 –9 gram
INFO
Ukuran sistem
(e) 1 sentimeter = 1 × 10 –2 meter (f) 1 terabait = 1 × 10 12 bait metrik
1 centimetre metre 1 terabyte byte Metric
measurements
(g) 1 mikrometer = 1 × 10 –6 meter (h) 1 gigabait = 1 × 10 9 bait
1 micrometre metre 1 gigabyte byte
(i) 1 pikometer = 1 × 10 –12 meter (j) 1 femtometer = 1 × 10 –15 meter E-pop
1 picometre metre 1 femtometre metre Quiz

17 © Penerbitan Pelangi Sdn. Bhd.

02_ Hybrid Mate Tg3.indd 17 20/08/2021 5:28 PM