文档介绍：三年级数学下册口算练****题
99 ×77= 59 61= × 27 51= ×
80 ×86= 10 55= × 651 29= ÷
231 ÷31= 845 14=÷ 4
(11)200 - 158 =
(12)300 - 257 =
(13)400 - 157 =
(14)700 - 205 =
(15)300 -
288 =
(1)70
× 5 =
(2)50
9×=
(3)10
8×= (4)7
30× =
(5)2
90× =
(6)70
8 ×=
(7)6
×20 =
(8)9
70× =
(9)2
90× = (10)20
1×=
(11)8
80×=
(12)60
× 3 =
(13)50
4×=
(14)90
7 ×=
(15)6
20× =
(1)5
10= ×
(2)30
× 6 =
(3)70
4×=
(4)7
80×=
(5)40
8×=
(6)4
80 =
×
(7)90
× 4 =
(8)10
6×=
(9)90
4 ×=
(10)60
9 ×=
(11)90
1 =
×
(12)3
×60 =
(13)1
50× =
(14)8
60× =
(15)2
30× =
(1)5
24× =
(2)7
×74 =
(3)6
20×=
(4)9
71×=
(5)11
2 ×=
(6)68
3 =
×
(7)4
×89 =
(8)49
7×=
(9)8
47×=
(10)4
46×=
(11)5
60 =
×
(12)79
× 3 =
(13)82
4×=
(14)1
88× = (15)1
86× =
(1)189
× 6 =
(2)8
405× =
(3)8
751× =
(4)945
6×=
(5)520
× 3 =
(6)7
121× =
(7)881
5×=
(8)261
5 ×=
(9)2
523 =×
(10)5
×460 =
(11)6
205× =
(12)9
654× =
(13)727
7×=
(14)564
6 =×
(15)1
×162 =
练****题 ( 二 ) (120
题)
4 / 5
(11)290
240× = (12)230
×740 =
(13)630
× 470 =(14)280
670× =
(15)940
760× =