设乙数是1;
1×(1+25%),
=1×125%,
=1.25;
1÷1.25=80%;
乙数是甲数的80%;80%≠75%.
故答案为:错误.
甲比乙多25%,乙就是甲的75%._.(判断对错)
甲比乙多25%,乙就是甲的75%.______.(判断对错)
数学人气:678 ℃时间:2019-09-22 07:43:11
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