56+7.(-5)+(-9).(-2)
\(\text{56+ 7. (-5)+ (-9). (-2)}\)
\(=56+\left(-35\right)+18\)
\(=39\)
học tốt
\(56+7.\left(-5\right)+\left(-9\right).\left(-2\right)\)
\(=56+\left(-35\right)+18\)
\(=39\)
chúc bạn học tốt!
56 + 7 . ( - 5 ) + ( - 9 ) . ( - 2 )
= 56 + ( - 35 ) + 18
= 21 + 18
= 39
\(56+7.\left(-5\right)+\left(-9\right).\left(-2\right)\)
\(=56+\left(-35\right)+18\)
\(=21+18\)
\(=39\)
56+ 7. (-5)+ (-9). (-2)
=56+ (-35)+ 18
=21 + 18
=39
