(589-732)-(589+2011-732)

= 589-732-589-2011+732

= (589-589)+(732-732)-2011

= 0+0-2011

=-2011

\(\left(589-732\right)-\left(589+2011-732\right)\)

\(=589-732-589-2011+732\)

\(=\left(589-589\right)+\left(-732+732\right)-2011\)

\(=-2011\)

\(27^3.81^6=\left(3^3\right)^3.\left(3^4\right)^6=3^9.3^{24}=3^{33}\)

ko bt

lớp 5 mà khó thế

a)(-76)+137+16+(-77)

=[(-76)+16]+[137+(-77)]

=(-60)+60

=0

a) [16+(-76)]+[137+(-77)]=

b) 371+371+(-517)+(-271)=

c)[732+(-732)]+[85+(-35)=

lon de a chac 816

= 816*15+1*15+85*816

=15+816*(15+85)

=15+816*100

=15+81600

=81615

Ủng hộ nha!

may tinh do

732 – 272

= (73 + 27)(73 – 27)

= 100.46

= 4600

=   5 12   -   7 × 16 32 × 21   =   5 12   -   1 6

  =   5 12   -   2 12   =   3 12   =   1 4