设甲数为x,乙数为10x,
10x-x=42.3,
9x=42.3,
x=4.7;
答:甲数是4.7.
故答案为:4.7.
甲数的小数点向右移1位后就和乙数相等,乙数比甲数多42.3,甲数是_.
甲数的小数点向右移1位后就和乙数相等,乙数比甲数多42.3,甲数是______.
数学人气:221 ℃时间:2019-12-29 00:36:09
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