请问这两题整-么写?请快一点!
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请问这两题整-么写?请快一点!
请问这两题整-么写?请快一点!
请问这两题整-么写?请快一点!
4.(1600-1400)÷1600×100%
=200÷1600×100%
=0.125×100%
=12.5%
5.116÷580×100%
=0.2×100%
=20%