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4 x 826 x 125 x 2
= (4 x 125 ) x ( 826 x 2 )
= 500 x 1652
= 826000
#HOK TỐT#
Có 4 x 826 x 125 x 2
=(4\(\times\)2)\(\times\)125\(\times\)826
=8\(\times\)125\(\times\)826
=1000\(\times\)826=826000
Hok tốt
Thuận
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a) 216 x 5 x 2
= 216 x (5x2)
= 216 x 10 = 2160
b) 4 x 76 x 25
= (4 x 25) x 76
= 100 x 76 = 7600
c) 5 x 19 x 2
= ( 5 x2 ) x 19
= 10 x 19 = 190
d) 125 x 23 x 8
= ( 125 x 8) x 23
= 1000 x 23 = 23000
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b. 2 x 8 x 50 x 25 x 125 = (2 × 50) × (8 × 125) × 25
= 100 × 1000 × 25
= 100000 × 25
= 2500000
= ( 2x50) x ( 8x125) x 25
= 100 x 1000 x 25
100000 x 25
= 2500000
![](https://rs.olm.vn/images/avt/0.png?1311)
b. 2 x 8 x 50 x 25 x 125 = (2 × 50) × (8 × 125) × 25
= 100 × 1000 × 25
= 100000 × 25
= 2500000
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`5 xx 74 xx 2 = 5xx 2 xx 74 = 10xx74 = 740`
`4xx196xx5 = 4xx5xx196 = 20xx196 = 3920`
`(50 + 25)xx4 = 50xx4 + 25xx4 = 200 + 100 = 300`
`125xx(80+8) = 125xx80 + 125xx8 = 10000 + 1000 = 11000`
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\(125\times25\times8\times4\)
\(=\left(125\times8\right)\times\left(25\times4\right)\)
\(=1000\times100\)
\(100000\)
125 x 25 x 8 x 4
= (125 x 8) x (25 x 4)
= 1000 x 100
= 100 000
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a, 2x9x5x7x4x25
=2x5x4x25x9x7
=10x100x63
=63000
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(50 x 2) x (125 x 8) x 202
= 100 x 1000 x 202
= 20 200 000
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a) 512 x 20 x 5
= 512 x (20 x 5)
= 512 x 100 = 51 200
b) 125 x 32 x 8
= (125 x 8) x 32
= 1000 x 32
= 32 000
\(4\times826\times125\times2\\=(4\times2\times125)\times826\\=(8\times125)\times826\\=1000\times826\\=826000\)
\(4\times826\times125\times2\)
\(=\left(4\times125\times2\right)\times826\)
\(=\left(500\times2\right)\times826\)
\(=1000\times826\)
\(=826000\)