(137x99+137)-(17x101-17) = 137x(99+1)-17x(101-1) = 137x100-17x100 = 100x(137-17) = 100x120 = 12000
\(\left(137.99+137\right)-\left(17.101-17\right)\)
\(=\left[137\left(99+1\right)\right]-\left[17\left(101-1\right)\right]\)
\(=\left(137.100\right)+\left(17.100\right)\)
\(=13700+1700=15400\)
( 137 . 99 + 137 ) - ( 17 . 101 - 17 )
= ( 137 .99 + 137 . 1 ) - ( 17 . 101 - 17 . 1 )
= 137 . ( 99 + 1 ) - 17 . ( 101 - 1 )
= 137 . 100 - 17 . 100
= ( 137 - 17 ) . 100
= 120 . 100
= 12000
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(137.99+137)-(17.101-17)
=137.(99+1)-17.(101-1)
=137.100-17.100
=(137-17).100
=120.100
=1200
=12000 bạn ơi
\(\left(137\times99+137\right)-\left(17\times101-17\right)\)
\(=\left[137\times\left(99+1\right)\right]-\left[17\times\left(101-1\right)\right]\)
\(=\left(137\times100\right)-\left(17\times100\right)\)
\(=13700-1700\)
\(=12000\)
