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36.28 + 36.82 + 64.69 + 64.41
= (36.28 + 36. 82) + ( 64.69 + 64.41)
= 36.(28 + 82) + 64.(69 + 41)
= 36.110 + 64.110 = 110.( 36 + 64 ) = 110.100 = 11000
![](https://rs.olm.vn/images/avt/0.png?1311)
a)=24.31+24.42+24.27=24.(31+42+27)=24.100=2400
b)=36.(28+82)+64.(69+41)=36.110+64.110=110.(36+64)=110.100=11000
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a ) = 24 . 31 + 24.42 + 24.27
= 24 . ( 31+42+27)
=24.100
= 2400
b) = 36.( 28+82) + 64.( 69+41)
= 36.101 + 64.101
=101.( 36+64)
=101.100
=10100
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 34.15 + 34.85 = 34.(15+85) = 34.100 = 3400
b) 12.57 + 57.25 + 63.57 = 57.(12+25+63) = 57.100 = 5700
c) 36.28 + 36.82 + 64.69 + 64.41 = 36.(28+82) + 64(69+41) = 36.110 + 64.110 = 110.(36+64) = 11000
d) 2.31.12 + 4.6.42 + 8.27.3 = 24.31 + 24.42 + 24.27 = 24.(31+42+27) = 24.100 = 2400
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 24.31 + 24.42 + 24.27 = 24 ( 31+42+27) =24.100 = 2400
b,36.(28+82)+64(69+41) = 36.110 + 64.110 = 110 (36+64) = 110.100= 11000
![](https://rs.olm.vn/images/avt/0.png?1311)
2.31.12 + 4.6.42 + 8.27.3
= 2.12.31 + 4.6.42 + 8.3.27
= 27.31 + 24.42 + 24.27
= 24.(31 + 42 + 27)
= 24.100
= 2400
36.28 + 36.82 + 64.69 + 64.41
= 36.(28 + 82) + 64.(69 + 41)
= 36.110 + 64.110
= 110.(36 + 64)
= 110.100
= 11000
Tính nhanh
2 . 31 . 12 .+ 4 . 6 . 42 + 8 . 27 . 3
= 2 . 12 . 31 + 4 . 6 . 42 + 8 . 3 . 27
= 24 . 31 + 24 . 42 + 24 . 27
= 24 . (31 + 42 + 27 )
= 24 . 100
= 2400
36 . 28 + 36 . 82 + 64 . 69 + 64 . 41
= 36 . (28 +82) + 64 . (69 + 41 )
= 36 . 110 + 64 . 110
= 110. ( 64 + 36 )
=110 . 100
= 11000
=
![](https://rs.olm.vn/images/avt/0.png?1311)
36.28+36.82+64.69+64.41
=36.(28+82)+64.(69+41)
=36.110+64.110
=(36+64).110
=100.110
=11000
36 . 28 + 36 . 82 + 64 . 69 + 64 . 41
= 36( 28 + 82 ) + 64( 69 + 41 )
= 36 . 110 + 64 . 110
= 110 ( 36 + 64 )
= 110 . 100
= 11000
![](https://rs.olm.vn/images/avt/0.png?1311)
= 36 * ( 28 + 82 ) + 64 * ( 69 + 41 )
= ( 36 + 64 ) * 110
= 100 * 110
= 11 000
36.28 + 36.82 + 64.69 + 64.41 = 36.(28 + 82) + 64.(69 + 41) = 36.110 + 64.110 = (36 + 64).110 = 100.110 = 11000
\(36x28+36x82+64x69+64x41\)
\(=36x\left(28+82\right)+64x\left(69+41\right)\)
\(=36x110+64x110\)
\(=\left(36+64\right)x110\)
\(=100x110\)
\(=11000\)