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Mathematics Form 3 Chapter 1 Indices
Section C (ii) a = 2, r = 2, n = 10 CHAPTER
a(r – 1) 2 Standard Form
n
1 s =
1. (a) (i) 368 × 3 + 2 020 = 1 105 + 2 020 n r – 1 Bentuk Piawai
3 = 3 125 2(2 – 1)
10
=5 5 s = 2 – 1
10
(ii) (6 – 3.808) ÷ 274 = 2.194 ÷ 274 = 2 046
= 0.008
1 55.6 – 34.5
= 1. Numbers Significant (d)
125 figures 109 + 58
= 5 –3 HOTS Challenge Nombor Angka bererti 21.1
=
167
(b) [(–3k) 4m + 6 –3 (a) 3.02 1 = 0.12635
] = 1
(–3k) –12m – 18 = (–3k) 0 Rounds 0 1 2 3 4 5 6 (b) 90 000 3 = 0.1
–12m – 18 = 0 Pusingan
–12m = 18 Players 64 32 16 8 4 2 1 (c) 3.0002 4 (e) (31.2 + 0.9) × (4.5 – 0.87)
18 Pemain (d) 4.348 5 = 32.1 × 3.63
m = – = 116.523
12 Match played
m = –1.5 Perlawanan dimain 32 16 8 4 2 1 – (e) 0.0045 2 = 117

(c) (i) k × k 4 Total match played: 2. (a) 950 6. (a) 545 = 5.45 × 10 2
–1
= k –1 + 4 32 + 16 + 8 + 4 + 2 + 1 = 63 (b) 600 (b) 65 100 = 6.51 × 10 4
= k 3 (c) 3860 (c) 26 = 2.6 × 10
6
(d) 620 (d) 4 300 000 = 4.3 × 10
(e) 8820 (e) 1 037 = 1.037 × 10 3
3. (a) 3.50 7. (a) 0.0045 = 4.5 × 10 –3
(b) 5.56 (b) 0.00025 = 2.5 × 10
–4
(c) 81.98 (c) 0.000076 = 7.6 × 10 –5
(d) 9.7 (d) 0.00000056 = 5.6 × 10 –7
(e) 7.0 (e) 0.9093 = 9.093 × 10
–1
4. (a) 0.49 8. (a) 5 × 10 = 5 000
3
(b) 0.0703 (b) 5.5 × 10 = 55
3
(c) 0.2198 (c) 3.46 × 10 = 3 460
5
(d) 0.46 (d) 8 × 10 = 800 000
(e) 0.03 (e) 3.69 × 10 = 36.9
5. (a) 5.23 × 1 025 ÷ 50 9. (a) 1 × 10 = 0.0001
–4
3
–3
= 5.36075 × 10 ÷ 50 (b) 6.5 × 10 = 0.0065
= 107.215 (c) 8.6 × 10 = 0.00086
–4
= 100 (d) 9 × 10 = 0.000009
–6
–6
(b) 42.5 × 8.12 ÷ 400 (e) 3.68 × 10 = 0.00000368
= 345.1 ÷ 400 10. (a) 4.44 × 10 + 0.21 × 10 3
3
= 0.86275 = (4.44 + 0.21) × 10 3
= 0.863 = 4.65 × 10 3
(c) 980 – 6.13 ÷ 0.02
5
= 980 – 306.5 (b) 4.5 × 10 – 3.2 × 10 4
5
= 673.5 = 4.5 × 10 – 0.32 × 10 5
= 670 = (4.5 – 0.32) × 10 5
= 4.18 × 10 5

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A4

BOOKLET ANS MATH F3.indd 4 03/01/2020 10:20 AM