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![](https://rs.olm.vn/images/avt/0.png?1311)
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58 x 42 + 32 x 8 + 5 x 16
= 58 x 42 + 16 x 2 x 8 + 5 x 16
= 58 x 42 + 16 x ( 2 x 8 + 5 )
= 58 x 42 + 16 x 21
= 58 x 2 x21 + 16 x 21
= 21 x ( 58 x 2 + 16 )
= 21 x 132
= 2772
![](https://rs.olm.vn/images/avt/0.png?1311)
58 x 42 + 32 x 8 + 5 x 16
= 58 x 42 + 2 x 16 x 8 + 5 x 16
= 58 x 21 x 2 + 16 x ( 2 x 8 + 5 )
= 58 x 21 x 2 + 16 x 21
= 21 x ( 58 x 2 + 16 )
= 21 x ( 116 + 16 )
= 21 x 132
= 2772
\(58\times42+32\times8+5\times16\)
\(=16\times16+5\times16+58\times42\)
\(=16\times\left(16+5\right)+58\times42\)
\(=16\times21+58\times42\)
\(=16\times21+116\times21\)
\(=\left(16+116\right)\times21\)
\(=132\times21\)\(=2772\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
58 x 42 + 32 x 8 + 5 x 16
= 2436 + 256 + 80
= 2692 + 80
= 2772
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
58 x 42 + 32 x 8 + 5 x 16
= 58 x 42 + 32 x 8 + 5 x 2 x 8
= 58 x42 + 32 x 8 + 10 x 8
= 58 x 42 + ( 32 + 10 ) x 8
= 58 x 42 + 42 x 8
= 42 x ( 58 + 8 )
= 42 x 66
= 2772
![](https://rs.olm.vn/images/avt/0.png?1311)
58 x 42 + 32 x 8 + 5 x 16
= 116 x 21 + 16 x 16 + 5 x 16
= 116 x 21 + 16(16 + 5)
= 116 x 21 + 16 x 21
= 21 x ( 116 + 16 )
= 21x 132
= 2772
58*42+32*8+5*16
=58*42+2*16*8+5*16
=58*21*2+16*(2*8+5)
=58*21*2+16*21
=21*(58*2+16)
=21*(116+16)
=21*132
=2772
58*42-32*8+5*16
=2436-256+80
=2180+80
=2260
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