108 . 12 + 25 . 92 + 13 . 108
= 108 . ( 12 + 13 ) + 25 . 92
= 108 . 25 + 25 . 92
= 25 . ( 108 + 92 )
= 25 . 200
= 5000
\(108.12+25.92+13.108\)
\(=108.\left(12+13\right)+25.92\)
\(=108.25+25.92\)
\(=25.\left(108+92\right)\)
\(=25.200\)
\(=5000\)
108 . 12 + 25 . 92 + 13 . 108
= 108 . ( 12 + 13 ) + 25 . 92
= 108 . 25 + 25 . 92
= 25 . ( 108 + 92 )
= 25 . 200
= 5000
108 . 12 + 25 . 92 + 13 . 108
= 108 . ( 12 + 13 ) + 25 . 92
= 108 . 25 + 25 . 92
= 25 . ( 108 + 92 )
= 25 . 200
= 5000
\(\text{108 . 12 + 25 . 92 + 13 . 108}\)
\(=108.\left(12+13\right)+25.92\)
\(=108.25+25.92\)
\(=25.\left(108+92\right)\)
\(=25.200\)
\(=5000\)
\(\text{Tính nhanh : }\)
\(108\cdot12+25\cdot92+13\cdot108\)
\(=108\cdot\left(12+13\right)+25\cdot92\)
\(=108\cdot25+25\cdot92\)
\(=25\cdot\left(108+92\right)\)
\(=25\cdot200\)
\(=25\cdot2\cdot100\)
\(=30\cdot100\)
\(=3000\)
