Toán Lớp 6: (-15 – 12 ) : ( – 15 + 12)
(-14+7)×(-2)³
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Toán Lớp 6: (-15 – 12 ) : ( – 15 + 12)
(-14+7)×(-2)³
Comments ( 2 )
$\left(-15\:-\:12\:\right)\::\:\left(\:-\:15\:+\:12\right)$
$=-27:\left(-3\right)$
$=9$
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$\left(-14+7\right)\times \left(-2\right)^3$
$=-7\times \left(-8\right)$
$=56$
(-15 – 12 ) : ( – 15 + 12)
=-(15+12): [-(15-12)]
=(-27):(-3)
=27 : 3
=9
———————-
(-14+7)×(-2)³
=-(14-7) x (-8)
=(-7) x (-8)
=7 x 8
=56