四年级几百几十数乘一位数
(1)4 × 30 = (2)100 × 4 = (3)700 × 5 =(4)9 × 800 = (5)8 × 80 = (6)5 × 200 =
(7)6 × 300 = (8)2 × 600 = (9)300 × 9 =
(10)2 × 400 = (11)4 × 50 = (12)3 × 20 =
(13)60 × 1 = (14)7 × 600 = (15)5 × 90 =
(16)20 × 1 = (17)90 × 3 = (18)9 × 300 =
(19)2 × 100 = (20)90 × 6 =
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