问题 解答题
66÷6=______
350÷50=______
75÷5=______
720÷8=______
50×9=______
804×3=______
102×4=______
400×5=______
5000-2500=______
8900-600=______
480+320=______
1420+580=______
1+
2
9
=______
1
8
+
1
8
=______
4
7
-
1
7
=______
1
14
+
4
14
=______.
答案

66÷6=11

350÷50=7

75÷5=15

720÷8=90

50×9=450

804×3=2412

102×4=408

400×5=2000

5000-2500=2500

8900-600=8300

480+320=800

1420+580=2000

1+

2
9
=1
2
9

1
8
+
1
8
=
1
4

4
7
-
1
7
=
3
7

1
14
+
4
14
=
5
14

故答案为:11,7,15,90,450,2412,408,2000,2500,8300,800,2000,1

2
9
1
4
3
7
5
14

单项选择题
单项选择题