四年级整十数除几百几十数
(1)920 ÷ 10 = (2)180 ÷ 90 = (3)900 ÷ 20 =(4)420 ÷ 10 = (5)540 ÷ 30 = (6)390 ÷ 30 =
(7)520 ÷ 10 = (8)330 ÷ 10 = (9)840 ÷ 20 =
(10)330 ÷ 30 = (11)100 ÷ 20 = (12)160 ÷ 20 =
(13)270 ÷ 30 = (14)510 ÷ 10 = (15)700 ÷ 10 =
(16)690 ÷ 30 = (17)440 ÷ 40 = (18)520 ÷ 40 =
(19)420 ÷ 70 = (20)720 ÷ 10 =
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