Page 61 - Hybrid PBD 2021 Form 1 - Matematik

Matematik Tingkatan 1 Bab 3
12. Cari anggaran setiap yang berikut dengan mengisi petak kosong dengan nombor yang sesuai. SP 3.1.7
Find the estimation of each of the following by filling the empty boxes with suitable numbers. TP2

(a)  (b) 
5.42
37.7
 36  37.7  49 4  5.42  9
18.8
16  18.8  25
37.7
5.42
36
49
      4     9
18.8
    
25
16
5.42
37.7
6    7 2    3
18.8
4    5
  6   2
37.7
5.42
  4
18.8
13. Hitung setiap yang berikut. SP 3.1.8 TP3
Calculate each of the following.
0.81 × 0.36
(a)  5 ×  (b) 
0.338
 3 ×  =  =  × 
27
5 × 0.338
0.81
=  =  = 0.9 × 0.6 0.36
3 × 27
1.69
=  = 1.3 = 0.54
81
= 9
7
1

(c)  ×  (d)    (e)  
2
2
0.0027
12
3 × 7
× –
=  3 147 2 7 63 8
0.0027 × 12
2
2
×
= 0.0324 = –  = 

×
8
2
= 0.18 3 147 441
4
= –  = 
16
441
2 = 21
= – 4
21 1
= 5
4
14. Hitung setiap yang berikut. SP 3.1.9 TP3
Calculate each of the following.
(a)  – (–3) 2 9 1 2
144
5 + (–12) 2 (b)  ÷  
2
8
16
= 25 + 144 = 12 – 9 3 1
= 169 = 3 = ÷  
4 64
3
= × 64
4
= 48
1
25


53


2
(c) (–2) ×  – 3 (d)  ÷ –2 1  2 + 5  (e) (–4 ) + 1 13 ÷ × (–5)
2
4
4
6
64
2
36
169
5 729 5 2 5 49
 

= 4 × – 3 =  ÷ – + = 16 +  × 6 × (–5)
8 169 2 4 36
5 27 15 7
= – 3 = ÷ = 16 + × 6 × (–5)
2 13 2 6
1 27 9 2
= – = × = 16 + 7 (–5)
2 13 15 5 = 16 + (–35)
= 18 = –19
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