问题
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3×999+8×99+4×9+8+7的值是: A.3840 B.3855 C.386
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999×778+333×666的值是()。A.99000 B.9990000 C.999000
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:999×101的值是()。A.99909 B.199999 C.99990 D.100899
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3×999 + 8×99 + 4×9 + 8 + 7 的值是:A.3840 B.3855 C.3866 D.3877
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13×99+135×999+1357×9999的值是 A.13507495 B.13574795 C.13704675 D.13704795
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101×999的值为()。 A.99909B.99999C.99990 D.100899