问题
解答题
|
答案
(1)91÷30,
≈90÷30,
=3;
(2)164÷20,
≈160÷20,
=8;
(3)160÷19,
≈160÷20,
=8;
(4)80÷38,
≈80÷40,
=2;
(5)633÷70,
≈630÷70,
=9;
(6)810÷89,
≈810÷90,
=9.
|
(1)91÷30,
≈90÷30,
=3;
(2)164÷20,
≈160÷20,
=8;
(3)160÷19,
≈160÷20,
=8;
(4)80÷38,
≈80÷40,
=2;
(5)633÷70,
≈630÷70,
=9;
(6)810÷89,
≈810÷90,
=9.