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A) (47-2+5)÷(16÷8) = b) [ 49-(6x6 - 15)+ 7 ] =c) 54 + { 16-[(4 x 4 - 10)+3]} -d) 15+{6+[(3×8-21)+2]}=e)

A) (47-2+5)÷(16÷8) =b) [ 49-(6x6 - 15)+ 7 ] =
c) 54 + { 16-[(4 x 4 - 10)+3]} -
d) 15+{6+[(3×8-21)+2]}=
e) { 12+[8×(19-5)-10]}=
F) 6 x {3+ [(9x3-22)+2]} =
G) 76 + [ 15÷ (6÷2+2)+ 1] =
H) 4x{19+ [5+ (32÷4-6)]-10}=​

1 Resposta

Isabelly

a) 25; b) 35; c) 61; d) 26; e) 114; f) 90; g) 80; h) 64

Explicação passo-a-passo:

a) (47-2+5)div(16div8)=

(+50)div(+2)=

25

b) 49-(6cdot6-15)+7=

49-(36-15)+7=

49-(+21)+7=

35

c) 54+{16-[(4cdot4-10)+3]}=

54+{16-[(16-10)+3]}=

54+{16-[6+3]}=

54+16-9=

61

d) 15+{6+[(3cdot8-21)+2]}=

15+{6+[(24-21)+2]}=

15+{6+[3+2]}=

15+{6+5}=

15+11=

26

e) 12+[8cdot(19-5)-10]=

12+[8cdot14-10]=

12+[112-10]=

12+102=

114

f) 6cdot{3+[(9cdot3-22)+2]}=

6cdot{3+[(27-22)+2]}=

6cdot{3+[5+7]}=

6cdot15=

90

g) 76+[15div(6div2+2)+1]=

76+[15div(3+2)+1]=

76+[15div5+1]=

76+[3+1]=

76+4=

80

h) 4cdot{19+[5+(32div4-6)]-10}=

4cdot{19+[5+(8-6)-10}=

4cdot{19-3}=

4cdot16=

64

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