January 2020 2 41 Report
Resolva as expressões númericas.

a. 50 - { 15 + [ 10 - 2 ) + 5 - 2 ] }
b. 70 - [ 5 • ( 4 ÷ 4 ) + 9 ]
c. 25 + { 27 ÷ 9 + [ 9 • 5 - 3 • ( 8 - 5 ) ] }
d. 25 - { 27 - ( 4 - 1 + 6 - 4 ) }
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