`17,77 + (37,44 + 33,79) - 12,67`
` = (17,77 - 12,67) + (37,44 + 33,79)`
` = 5,1 + 71,23`
` = 76,33`
____________
`199-(12,5+32,75)+122,2`
` = (199 +122,2) - (12,5 + 32,75)`
` = 321,2 - 45,25`
` = 275,95`
Đáp án:
17,77+(37,44+33,79)-12,67
=17,77+71,23-12,67
=89-12,67
=76,33
199-(12,5+32,75)+122,2
=199-45,25+122,2
=153,75 + 122,2
=275,95
@tuanbach1104
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