Toán Lớp 6: Tính bằng hai cách
63-9.(12+7)
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Toán Lớp 6: Tính bằng hai cách
63-9.(12+7)
Comments ( 2 )
Giải đáp:
$=63 – 9.19$
$=63-171$
$=-108$
$63-9.(12+7)$
$= 63-9.12+9.7$
$= (63-63)-108$
$= -108$