四年级数学上册除法简便运算练习题及答案(2)
合肥奥数网整理
2011-11-21 15:55:04
参考答案
1、判断
(1)× (2)× (3)× (4)√
2、选择
(1)③ (2)③ (3)③ (4)③
3、简算
(1)360÷8÷5 (2)800÷5÷8
=360÷(5×8) =800÷(5×8)
=360÷40 =800÷40
=9 =20
(3)700÷14÷5 (4)360÷72
=700÷(14×5) =360÷9÷8
=700÷70 =40÷8
=10 =5

