32.(-39 )+16.(-22 )
32.(-39)+16.(-22)
32.(-39)+16.(-22)
32.(-39)+16.(-22)
= 16.2.(-39)+16.(-22)
= 16.(-78)+16.(-22)
= 16.[(-78)+(-22)]
= 16.(-100)
= -1600
\(32.\left(-39\right)+16.\left(-22\right)=2.16.\left(-39\right)+16\left(-22\right)\)
\(=16.\left(-78\right)+16\left(-22\right)\)
\(=16.\left(-78-22\right)\)
\(=16.\left(-100\right)=-1600\)
32.(-39) + 16.(-22)
\(32.\left(-39\right)+16.\left(-22\right)=16\left(-39.2-22\right)=16.\left(-100\right)=-1600\)
32.(-39)+16.(-22)
Ta có: \(32.\left(-39\right)+16.\left(-22\right)\)
\(=16.2.\left(-39\right)+16.\left(-22\right)\)
\(=16.\left(-78\right)+16.\left(-22\right)\)
\(=16.\left[\left(-78\right)+\left(-22\right)\right]\)
\(=16.\left(-100\right)\)
\(=-1600\)
\(32.\left(-39\right)+16.\left(-22\right)\)
\(=\left(-1248\right)+\left(-352\right)\)
\(=\left(-1600\right)\)
32.(-39).16.(-22)
32.(-39).16.(-22)
= (-1248).16.(-22)
= (-19968).(-22)
= 439296
32 . (-39)+16.(-22)
32.(-39)+16.(-22)
=2.16.(-39)+16.(-22)
=2.16.[-39+(-22)]
=2.16.(-61)
=32.(-61)
=-1952
32 . ( - 39 ) + 16 . ( -22)
= 16 . 2 . ( - 39 ) + 16 . ( - 22 )
= 16 . [ 2 . ( - 39 ) + ( - 22 )]
= 16 . [ - 78 - 22 ]
= 16 . ( -100 )
= - 1600
@@ Học tôts
Tính nhanh : 32.( -39) + 16.( –22)
32.( -39) + 16.( –22)
= 16.2.(-39) + 16.(-22)
= 16.(-78) + 16.(-22)
= 16.[(-78) + (-22)]
= 16.(-100)
= -1600
tính hợp lí : 32.(-39)+16(-22)
32.( -39 ) + 16.(-22) = 32.(-39) + 32.(-11)
= 32. ( -39 + -11)
= 32. -50
= -1600
32.(-39)+16.(-22)
suy ra:16.2.(-39)+16.(-22)
suy ra: 16.(-78)+16.(-22)
suy ra:16.(-100)
suy ra: 1600
tính
a, 32 [-39+16.[-22]
b,44.[-36] + 22.[-28]
a,32.(-39+16.(-22))
=32.(-39+-352)
=32.(-391)
=-12512
b,44.(-36)+22.(-28)
=22.2.(-36)+22.(-28)
=22.(-72)+22.(-28)
=22.(-72+-28)
=22.(-100)
=-2200