PowerPoint Presentation · a-I,b-3 both a b? both a b? BC in the the Id ti ther etio of the ratio...
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Transcript of PowerPoint Presentation · a-I,b-3 both a b? both a b? BC in the the Id ti ther etio of the ratio...
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• 𝐴 × 10𝑛 , 1 ≤ 𝐴 < 10
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𝑎 < 𝑥 ≤ 𝑏•
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3
5
4
5, 0.7 and 75%
<, > =
2
5
0.2856
2000.72
36
50
7
25
1
4
1
83
8
1
3= 30%.
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0.1 × ⋯ = ⋯÷ 10
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76
5
0.1 × 3003
5
0.04 × 7505
6
2
530
1
81607
7120.3 × 40
15% 40
100% 20
3
5
3
5
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0.4 × £3000 = £1200
3
83
8
16000 × 3 ÷ 8 0.375 × 37.5% ×
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= +
+
< >
8
===
===
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× × ×
− =
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58
80
48
80
53
80
56
80
1389
6000=
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240% 480% 50% 100% 200%
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+
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40% 60
20%
10%
100%
80%
8%
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100% 30%
÷ 12 ÷
××
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170 − 120 = 5050
120= 0.41666 ≈ 42%
170
120= 1.41666 ≈ 142%
142%− 100% = 42%
£38350 ÷ 0.82 £38350 × 1.18 £38350 × 0.18
£38350 ÷ 1.18 £38350 × 0.82