78.58-2.58=76;
所以原数是:0.76,
正确的得数是:2.58+0.76=3.34;
答:正确的得数是3.34.
小力计算2.58加一个两位小数时,由于马虎,将这个两位小数的小数点丢了,结果得数是78.58,正确的得数应该是多少?
小力计算2.58加一个两位小数时,由于马虎,将这个两位小数的小数点丢了,结果得数是78.58,正确的得数应该是多少?
数学人气:753 ℃时间:2020-05-09 09:54:09
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