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William15987
@William15987
January 2020
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Calcule, mentalmente, o valor das expressões
a) 45 - 52² =
b) -10 + 1⁵ + 3² =
c) 2⁰ + 4² - 2⁴ =
d) 50 - 7² =
e) (-4)² - 14 =
f) (2)³- (3)² =
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GeysiellyM
A) -2340
b) 0
c) 2
d) 1
e) 2
f) -1
Resolução:
a) 45 - 52² = 45 - 2704 = - 2340
b) -10 +1 + 9 = -9+9= 0
c) 2+16-16= 2
d) 50 - 7²= 50-49=1
e) 16-14= 2
f) 8-9= -1
1 votes
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b) 0
c) 2
d) 1
e) 2
f) -1
Resolução:
a) 45 - 52² = 45 - 2704 = - 2340
b) -10 +1 + 9 = -9+9= 0
c) 2+16-16= 2
d) 50 - 7²= 50-49=1
e) 16-14= 2
f) 8-9= -1