2 câu trả lời
$123+ [54 + (-123) + 46]$
$=123 + (54-123+46 )$
$=123 +54 - 123 +46 $
$=(123-123 ) +(54+46)$
$=0+100$
$=100$
=123+ [54 + (-123) + 46]
=123+ 54 -123 + 46
=(123-123)+ (54+46)
= 0 + 100 = 100
$123+ [54 + (-123) + 46]$
$=123 + (54-123+46 )$
$=123 +54 - 123 +46 $
$=(123-123 ) +(54+46)$
$=0+100$
$=100$
=123+ [54 + (-123) + 46]
=123+ 54 -123 + 46
=(123-123)+ (54+46)
= 0 + 100 = 100
