Question

resolver as expressões numéricas:

a)3³+2³‐3.2

b)7² ‐4.2+3

c)50‐{15+[4²÷(10‐2)+5.2]}




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Answer 1

Explicação:

a)3³+2³‐3.2 =

27+8-6=

35-6=

29

b)7² ‐4.2+3 =

49-8+3=

52-8 =

44

c)50‐{15+[4²÷(10‐2)+5.2]} =

50-{15+[16 :(8) + 10]} =

50-{15+[2 +10]} =

50-{15+12} =

50-{27} =

50 - 27 =

23