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一年级下册口算练习题(1000道)
发布时间:2020-10-29
2-0=
12
+
6
=
29
-
7
=
33
+
2
=
3
+
40
=
15
+
4
=
23
+
5
=
37
+
1
=
29
-
3
=
38
-
3
=
15
-
4
=
18
-
2
=
30
+
8
=
43
+
1
=
86
+
2
=
70
+
3
=
30
-
2
=
72
-
2
=
66
-
4
=
39
-
2
=
20
-
9
=
53
+
5
=
40
+
6
=
50
-
4=
32
+
4
=
18
-
4
=
36
+
3
=
11
+
9
=
25
+
7
=
56
+
20
=
32
+
6
=
43
+
5
=
81
-
2