问题
填空题
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答案
(1)9999999=0.99999999亿<1亿,
(2)3.08=3.0800,
(3)2.109>2.1009,
(4)2.57>2.566,
(5)0.63×0.9,因0.63乘的数0.9比1小,积就比它小,所以产0.63×0.9<0.63,
(6)因1米2厘米=1.02米,所以10.2米=1米2厘米.
故答案为:<,=,>,>,<,=.
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(1)9999999=0.99999999亿<1亿,
(2)3.08=3.0800,
(3)2.109>2.1009,
(4)2.57>2.566,
(5)0.63×0.9,因0.63乘的数0.9比1小,积就比它小,所以产0.63×0.9<0.63,
(6)因1米2厘米=1.02米,所以10.2米=1米2厘米.
故答案为:<,=,>,>,<,=.