Tính -137+(52).(-137)+(-137).(47)
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a, 25 . (-37) . (-4)
= [ 25 . (-4) ] . (-37)
= (-100) . (-37)
= 3700
b, (-137) + 52 . (-137) + (-137) . 47
= (-137) . 1 + 52 . (-137) + (-137) . 47
= (-137) . (1 + 52 + 47)
= (-137) . 100
= -13700
c, \(\left(\frac{-1}{6}+\frac{5}{-12}\right)+\frac{7}{12}\)
= \(\frac{-7}{12}+\frac{7}{12}\)
= \(0\)
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-137+52.(-137)+(-137).47
=(-137).1+52.(-137)+(-137).47
=(-137).(1+52+47)
= (-137).100
=-13700
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a,( -137 ) + (+52) . (-137) + (-137) . (+47)
<=> ( - 137 ) . 1 + 52 . ( - 137 ) + ( - 137 ) . 47
<=> ( - 137 ) . ( 1 + 52 + 47 )
<=> -137 . 100
<=> - 13700
b,-135 + 135 . ( -19 ) - 80 . 135
<=>-135 + 135 . ( -19 ) + ( -80 ) . 135
<=>-135 . 1 + 135 . ( -19 ) + ( -80 ) . 135
<=>-135 .[ ( -19 ) + ( - 80 ) + 1 ]
<=>-135.(-100)
<=>-13500
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a] -567 + 113 - 113567 - 2011
= -454 - 113567 - 2011
= -114021 - 2011= -116032
B] -137 x [52 + 47+1]
= -137 x 100
= -13700
C] 15 x [16 - 222] - 16 x [222 + 15]
= 15 x [-206] - 16 x 237
= -3090 - 3792
= -6882
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a)
\(34.86+68.37\)
\(=34.2.43+68.37\)
\(=68\left(43+37\right)=68.70=4760\)
b)
\(47.25+137.49+47.75-37.49\)
\(=47\left(25+75\right)+49\left(137-37\right)\)
\(=47.100+49.100\)
\(=100\left(47+49\right)\)
\(=100.96\)
=9600
=-137(1+52+47)
=-137. 100
= -13700