Toán Lớp 6: 2 / – ( 509 – 427 ) + ( 509 – 400 )
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Toán Lớp 6: 2 / – ( 509 – 427 ) + ( 509 – 400 )
Comments ( 2 )
$# Xin Hay Nhất $
– ( 509 – 427 ) + ( 509 – 400 )
= [ (-509 ) + 509 ] + ( 427 – 400)
= 0 + 27
= 27