Đáp án:
a) 47- ((45.2^4-5².12)÷14)
= 47- ((45.16-25.12)÷14)
= 47- ((720-300)÷14)
= 47- (420÷14)
=47-30=17
b) 50-((20-2³)÷2+34)
=50-((20-8)÷2+34)
=50-(12÷2+34)
=50-40=10
c) 10²-(60÷(5^6÷5^4-3.5))
=10²-(60÷(5²-3.5)
=10²-(60÷(25-15)
=10²-(60÷10)
=100-6=94
đ) 50-((50-2³.5)÷2+3)
=50-((50-8.5)÷2+3)
=50-(10÷2+3)
=50-8=42
e) 10-((8²-48).5+(2³.10+8))÷28
=10-((64-48).5+(8.10+8))÷28
=10-(16.5+88)÷28
=10-(80+88)÷28
=10-168÷28
=10-6=4
f) 8697-(3^7÷3^5+2(13-3)
=8697-(3²+2.10)
=8697-(9+20)
=8697-29=8668
g) 2011+5(300-(17-7)²)
=2011+5(300-10²)
=2011+5(300-100)
=2011+5.3
=2011+8=2019
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