Question

a) 30 ÷ [10 + ( - 2 - 3)] =6 b) 7² – 6 ÷ 2 + √16 = c) 24¹ – √25 + 3³ = d) 100 – {√81 + 5³ x [7 – (4 ÷ 2)]} = e) 7² – 4² ÷ 2 + √121 = f) [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6.= g) {23 · 2 – 12 ÷ 6} · 2 + 12 = h) 8² – 5² ÷ 5° + √144 = i) 98 – {√36 + 100° x [8 – (4 ÷ 2)]} = j) 7² – 4³ ÷ 8² + √49 =

Answer 1

Resposta:

Explicação passo-a-passo:

a) 30 ÷ [10 + ( - 2 - 3)] =

30 ÷ [10 + (-5)] =

30 ÷ [10-5] =

30 ÷ 5=

30 ÷ 5=

6

b) 7² – 6 ÷ 2 + √16 =

49- 3 + 4=

46+4=

50

c) 24¹ – √25 + 3³ =

24-5+27

19+27=

46

d) 100 – {√81 + 5³ x [7 – (4 ÷ 2)]} =

100 – {9 + 125 x [7 – 2]} =

100 – {9 + 125 x [7 – 2]} =

100 – {134 x 5} =

100 – {134 x 5} =

-100-670=

770

e) 7² – 4² ÷ 2 + √121 =

49+16÷2+11

65 ÷ 13=

5

f) [(18 + 3 · 2) ÷ 8 + 5 · 3] ÷ 6.=

[(18 + 6) ÷ 8 + 5 · 3] ÷ 6.=

[24 ÷ 8 + 15] ÷ 6.=

[3 +15] ÷ 6.=

18 ÷ 6.=

3

g) {23 · 2 – 12 ÷ 6} · 2 + 12 =

{46 – 2} · 14=

44 · 14=

616

h) 8² – 5² ÷ 5° + √144 =

64+25÷1+12=

64+25+12=

89+12=

101

i) 98 – {√36 + 100° x [8 – (4 ÷ 2)]} =

98 – {6 + 1 x [8 – 2]} =

98 – {7 x 6} =

98 –42 =

56

j) 7² – 4³ ÷ 8² + √49 =

49-64÷64+7=

49-1+7=

48+7=

55