找规律,0.987653 0.98765 0.9877 0.988 ( )1.0
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找规律,0.9876530.987650.98770.988()1.0找规律,0.9876530.987650.98770.988()1.0找规律,0.9876530.987650.98770.988
找规律,0.987653 0.98765 0.9877 0.988 ( )1.0
找规律,0.987653 0.98765 0.9877 0.988 ( )1.0
找规律,0.987653 0.98765 0.9877 0.988 ( )1.0
按四舍五入是0.99
四舍五入懂不?
1-4舍去
5-9进1
0.99,四舍五入,每后面一个数,小数位数减少1位
0.99