PowerPoint Presentation · 4 ×103 g 8.4 ×101.5 l 42 000 kg 150 000 000 km 0.3 ×104 cm2 36 ×105...
Transcript of PowerPoint Presentation · 4 ×103 g 8.4 ×101.5 l 42 000 kg 150 000 000 km 0.3 ×104 cm2 36 ×105...
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Thousands Ones
H T O H T O
1000 5000
Eighty thousand 84 490
69 029 74 738
69 000 78 011
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−− − − +
+
++ = + + + +
= += + −
− 1
343 443442
+ = + − − = − −
− = − + + = +
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× = × +× +
× = + × = × + ×
186 ÷ 3 = 62
186 ÷ 6 = 124
× 2 × 2
186 ÷ 3 = 62
186 ÷ 6 = 31
× 2 ÷ 2
× = × × ×= × × = × =
× = × × = × ×
÷ < ÷
× =
×
×
×
×÷
÷ ×
×
÷
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× ×
× ×
= ×
= × = ×
4 × 103 g 8.4 × 101.5 l 42 000 kg
150 000 000 km 0.3 × 104 cm2 36 × 105 m
× × × × × ×
HTh TTh Th H T O
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× ×
= ×
× × × × × ×
0.004
4 × 10-30.04
4 × 10-20.45
4.5 × 10-1
0.045
4.5 × 10-3
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=
=
14.6 14.65 14.714.629
5 . 2 0 9 6
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=
0 10000 20000 30000
24090
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= == × ≠ ×
= × × ≠ ×
𝑥7 cm
7 c
m 25 cm2
Area = 7 × 7= 72
= 49 cm2
Area = 25𝑥2 = 25
𝑥 = 25
= 5 cm
23(−2)3
(−3)222
8
4
4
93
38
2
32
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≤ 𝑥 < ≤ 𝑥 <
𝑥 =
==
1.2 1.3 1.4 1.5 1.6
1.25 ≤ 𝑥 < 1.35
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143
100 40 3
79 7
09
× 100 40 3
70
9
3 4 7
+ 5 6
3 9 1 3
1 2 1
6 7 1 5 6
× 100 40 3
70 700 280 210
9 900 360 27
1
2
1
4 7
− 7 8
1 7 1
7 0 0
2 8 0
2 1 0
9 0 0
3 6 0
+ 1 2 7
2 4 7 7
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÷÷
× =
4.5 ÷ 0.3 = 0.15
45 ÷ 3 = 15
× 10 ÷ 100× 10
4.5 × 0.3 = 1.45
45 × 3 = 145
× 10 ÷ 100× 10
0.32 × 0.4 = 0.144
32 × 4 = 144
× 100 × 1000× 10
0.32 × 0.4 = 0.144
32 × 4 = 144
× 100 ÷ 1000× 10
7.8 × 3.1 = 24.18
78 × 31 = 2418
× 10 ÷ 100× 10
7.8 × 3.1
8 × 3 = 24
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8 × 105 + 6 × 105 14 × 105
× × × = × × ×= × × × × × ×= × ×= ×
× + ×
× × × ×
× ÷ ×
× × × ×
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+ 𝜋 = 𝜋
50 cm2 16𝜋 cm2 50.26548246 cm2 50.3 cm2
t
4
𝜋5
A = l × w
= 4 × t
= 4t
A = 𝜋𝑟2
= 𝜋 × 52
= 25𝜋
A = l × w
= 𝜋 × 𝜋= 𝜋2
P =𝜋d2+ 16
=16𝜋2
+ 16
= 8𝜋 + 16
8