1) 58×75+58×50-58.25
=58.(75+50.25)
=58.1325=76850
2) 20÷2²+5^9÷5^8
=20÷4+5
=5+5=10
3) (5^19÷5^17+3)÷7
=(5²+3)÷7
=(25+3)÷7
=28÷7=4
4) 84÷4+3^9÷3^7+5^0
=84÷4+3^2+5
=84÷4+9+5
=21+9+5=35
5) 295-(31-2²×5)²
=295-(31-4×5)²
=295-(31-20)²
=295-11²
=295-121=174
6) 1^25÷1^23-3^5÷(1^10+2³)-60
=1²-243÷(1+8)-60
=1-243÷9-60
=1-27-60=-86
7) 29-[16+3×(51-49)]
=29-[16+3×2]
=29-[16+6]
=29-22=7
8) 47-[(45×2^4-5²×12)÷14]
=47-[(45×16-25×12)÷14]
=47-[420÷14]
=47-30=17
9) 10²-[60÷(5^6÷5^4-3×5)]
=100-[60÷(5²-3×5)]
=100-[60÷(25-3×5)]
=100-[60÷(25-15)]
=100-[60÷10]
=100-6=94
10) 2345-1000÷[19-2(21-18)²]
=2345-1000÷[19-2×117]
=2345-1000÷[19-234]
=2345-1000÷(-215)
=(2345-1000)÷(-215)
=1345÷(-215)=1345/-215 (1345 phần -215)
11) 5432-1000÷[19-2(39-6²)²]
=5432-1000÷[19-2(39-36)²]
=5432-1000÷[19-2×225]
=5432-1000÷[19-450]
=5432-1000÷(-431)
=(5432-1000)÷(-431)
=4431÷(-431)=4431/(-431) (4431 phần -431)
