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Chọn A

A

34+67-67+67-67 x 1 = 34

34 nhé

= 34 nha !

( -67 ) . ( 1 - 301 ) - 301 . 67

= ( -67 ) . ( - 300 ) - 301. 67

= 67 . 300 - 301 . 67

= 67 . ( 300 - 301 )

= 67 . ( -1 )

= -67

   \(\left(-67\right).\left(1-301\right)-301.67\)

\(=\left(-67\right).\left(-300\right)-20167\)

\(=20100-20167\)

\(=-67\)

(-67).(1 – 301 ) – 301. 67 = (-67).1 + 67.301 – 67. 301 = -67

b. 0

c. 112

d. 1250

e. -78

f. -67

b) [(24+-67)]-[-67-(-24)]=0
c) 2^3.17-2^3.14=112
d) 26.(-125)-125.(-36)=1250
e) 48-6(12+9)=-78
f) (-67).(1-301)-301.67=-67

\(\left(-67\right).\left(1-301\right)-301.67\)

\(=-67-\left(-67\right).301-301.67\)

\(=-67+67.301-301.67\)

\(=-67\)

a) (-119).(-125).4.(-8).(-25) = [(-125).(-8)].[(-25).(-4)].(-119) = 1000.100.(-119) = 100000.(-119) = -11900000

b) (-67).(-1)^200.(-8).125.(-1)^2n+1 = -67.1.[(-8).125].(-1) = -67.(-1000).(-1) = 67000 . (-1) = -67000

c) -67.52-48.67 = 67.(-52)-48.67 = 67. (-52-48) = 67.(-100) = -6700

d)42.(-119)+119.(-58) = -42.119+119.(-58)=119.[-42+(-58)] = 119.(-100)=-11900

bằng 1/3 bạn nhé ..check mk đó.

\(\left(\frac{1}{3}+\frac{12}{67}+\frac{13}{41}\right)-\left(\frac{79}{67}-\frac{28}{41}\right)\)

\(=\frac{1}{3}+\frac{12}{67}+\frac{13}{41}-\frac{79}{67}+\frac{28}{41}\)

\(=\left(\frac{12}{67}-\frac{79}{67}\right)+\left(\frac{13}{41}+\frac{28}{41}\right)+\frac{1}{3}\)

\(=\left(-1\right)+1+\frac{1}{3}\)

\(=\frac{1}{3}\)

bằng \(\frac{1}{3}\)nhé

= (468-368)x67
= 100x67
= 6700

= (468-368) x67

= 100x67

= 6700

\(468\) x \(67-368\) x \(67\)
\(=67\) x \(\left(468-368\right)\)
\(=67\) x \(100\)
\(=6700\)