奥数 > 小学试题库 > 口算题 > 四年级口算题 > 正文
2010-01-14 11:08:26
(1) 20 ÷ 10 = (2) 90 ÷ 10 = (3) 30 ÷ 10 =
(4) 60 ÷ 10 = (5) 90 ÷ 30 = (6) 60 ÷ 20 =
(7) 40 ÷ 10 = (8) 80 ÷ 20 = (9) 80 ÷ 10 =
(10) 50 ÷ 10 = (11) 40 ÷ 20 = (12) 80 ÷ 40 =
(13) 70 ÷ 10 = (14) 60 ÷ 30 =
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