四年级口算题:几百几十数乘一位数
奥数网
2010-08-18 16:51:05
四年级口算题:几百几十数乘一位数
(1)8 × 30 =
(2)3 × 600 =
(3)20 × 3 =
(4)2 × 20 =
(5)300 × 6 =
(6)4 × 60 =
(7)3 × 30 =
(8)5 × 800 =
(9)2 × 20 =
(10)90 × 4 =
(11)3 × 900 =
(12)1 × 10 =
(13)5 × 300 =
(14)700 × 1 =
(15)3 × 90 =