怎么算简便怎样算。 3⼀7-(1⼀2-3⼀7)+1⼀2 73÷0.8÷12.5 1⼀2×201-1⼀2 (1⼀3+1⼀8-1⼀24)÷1⼀24 高人解答!

2024-11-20 10:46:22
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回答(1):

3/7-(1/2-3/7)+1/2
=3/7 - 1/2 + 3/7 + 1/2
=3/7 + 3/7
=6/7
.
73÷0.8÷12.5
=73÷(0.8×12.5)
=73÷10
=7.3
.
1/2×201-1/2
=(1/2)×(201-1)
=(1/2)×200
=100
.
(1/3+1/8-1/24)÷1/24
=(1/3+1/8-1/24)×24
=(1/3)×24 +(1/8)×24 -(1/24)×24
=8 +3 -1
=10