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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: a) (-6).9 b)(-12).(-987) c)90.(-108).(-3) d)29.(-78).(-9).(-11) e)6.( $-4^{2}$ ).( $-10^{2}$ )+ $5^{2}$ g)

Toán Lớp 6: a) (-6).9 b)(-12).(-987) c)90.(-108).(-3) d)29.(-78).(-9).(-11)
e)6.( $-4^{2}$ ).( $-10^{2}$ )+ $5^{2}$ g)(-7).(-7).(-7)+ $7^{3}$
h) $(-10^{3}).(10^{2})-13^{2}$ i) (-8).(-8).(-8).(-8)- $8^{4}+10^{5}$
Giải chi tiết từng bước giúp ạ cảm ơn

Comments ( 2 )

  1. a ) ( − 6 ) .9
    = − ( 6.9 )
    = − 54  
    b ) ( − 12 ) . ( − 987 )
    = 12.987
    = 11844   
    c ) 90. ( − 108 ) . ( − 3 )
    = 90.108.3
    = 29160 
    d ) 29. ( − 78 ) . ( − 9 ) . ( − 11 )
    = − ( 29.78.9.11 )
    = − 223938 

  2. $ a) ( -6).9=-(6.9)=-54 $
    $ b) ( -12).(-987)=12.987=11844 $ 
    $ c)90.(-108).(-3)=90.108.3=29160 $
    $ d) 29.(-78).(-9).(-11)=-(29.78.9.11)=-223938 $
    $ e) (-4)^2.(-10)^2+5^2=16.100+25=1600+25=1625 $ 
    $ g) ( -7).(-7).(-7)+7^3=(-7)^3+7^3=0 $ 
    $ h)=(-10)^3.(-10)^2-13^2=(-10)^5-13^2=-100 000 – 169 = -100 169 $ 
    $ i) (-8).(-8).(-8).(-8)-8^4+10^5=(-8)^4-8^4+100 000 = 8^4-8^4+100 000 = 0 + 100 000 = 100 000 $

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222-9+11+12:2*14+14 = ? ( )

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