Question

Calcule as expressões a seguir.
a) 3,49 + 3,2 × 6,24 =
b) 8,05 - 2,7 × 0,36 =
c) (8,41 × 5,3 + 4) - (10,6 - 3,426) =
d) 4,3 + 1,7 × (18,38 - 3,25 × 2,7) =​

Answer 1

Resposta:

$3,49+3,2\times6,24=\\3,49+19,968\\23,458\\\\8,05-2,7\times0,36=\\8,05-0,972\\7,078\\\\(8,41\times5,3+4)-(10,6-3,426)=\\(44,573+4)-7,174\\48,573-7,174\\41,399\\\\4,3+1,7\times(18,38-3,25\times2,7)=\\4,3+1,7\times(18,38-8,775)\\4,3+1,7\times9,605\\4,3+16,3285\\20,6285$

Explicação passo a passo: