Toán Lớp 6: A/ 57.(-23)-65.57
B/89.(-126)-74.89
C/151.(-134)-151.(-135).151
D/(-25)+72.(-25)+(-25).27
E/(-27).23+23.73+54.23
F/(-29).72+16(-29)+(-29)+12
G/(-52).58+41.(-52)+(-52)
H/36.(-33)+97.36+36.37-36
I)74.(-41)-41.26
J/-54.38+12.(-54)-50.(-54)
Giúp e với nhé!
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$=57.(-23-65)$
$=57.(-88)$
$=-5016$
______________________
$89.(-126)-74.89$
$=89.(-126-74)$
$=89.(-200)$
$=-17800$
______________________
$151 . (-134) – 151 . (-135) . 151$
$= 151 (-134 – 135 . 151 )$
$= 151 . (-134 – 20385)$
$= 151 . (-20519)$
$= -3098369$
_________________________
$(-25)+72.(-25)+(-25).27$
$=(-25). (1+72+27)$
$=(-25).100$
$=-2500$
__________________________
$(-27).23+23.73+54.23$
$=23. (-27+73+54)$
$=23.100$
$=2300$
__________________________
$(-29).72+16(-29)+(-29).12$
$=(-29). (72+16+12)$
$=-29.100$
$=-2900$
___________________________
$(-52).58+41.(-52)+(-52)$
$=(-52). (58+41+1)$
$=-52.100$
$=-5200$
___________________________
$36.(-33)+97.36+36.37-36$
$=36. (-33+97+37-1)$
$=36.100$
$=3600$
___________________________
$74.(-41)-41.26$
$=(-41). (74+26)$
$=-41.100$
$=-4100$
__________________________
$-54.38+12.(-54)-50.(-54)$
$=(-54).(38+12-50)$
$=-54.0$
$=0$
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