Question

me ajudem por favorsinho

a) 0,8x5,4=

b)9,3x2,5=

c)2,4x5,38​

com a conta montada por favor​

Answer 1

Resposta:

a) 0,8x5,4

=8*54/100

=8*(50+4)/100

=(8*50+8*4)/100

=(400+32)/100

=432/100

=4,32

b)9,3x2,5=

=93*25/100

=(90+3)*25/100

=(90*25+3*25)/100

=2250+75)/100

=2325/100

=23,25

c)2,4x5,38​

=24*538/1000

=(20+4)*538/1000

=(20*538+4*538)/1000

=(10760 +2152)/1000

=12912/1000

=12,912