Owl Egg
staying ahead wisely
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You have 20 minutes to finish this exercise
Name
Subject
Level
Section
Exercise
Lesson
Sample User
Math
1
Subtracting Numbers
Subtraction Facts for 9 and 10
132
Click on the appropriate choice. When done, click on the submit button.
What is the difference between the 2 numbers?
9
-
6
=
9
-
2
=
9
-
4
=
9
-
2
=
10
-
8
=
10
-
6
=
10
-
5
=
9
-
6
=
10
-
5
=
10
-
9
=
9
-
7
=
9
-
0
=
10
-
4
=
10
-
7
=
9
-
4
=
9
-
0
=
10
-
1
=
9
-
2
=
9
-
3
=
10
-
0
=
9
-
8
=
10
-
10
=
9
-
3
=
9
-
8
=
10
-
7
=
9
-
1
=
10
-
1
=
10
-
2
=
10
-
9
=
10
-
3
=
10
-
2
=
9
-
5
=
10
-
0
=
10
-
3
=
9
-
1
=
10
-
2
=
10
-
4
=
9
-
7
=
9
-
1
=
9
-
0
=
9
-
9
=
10
-
9
=
9
-
6
=
10
-
10
=
9
-
3
=
10
-
10
=
10
-
4
=
10
-
1
=
10
-
5
=
10
-
8
=
9
-
8
=
9
-
4
=
9
-
9
=
10
-
7
=
9
-
5
=
9
-
9
=
10
-
6
=
9
-
5
=
9
-
7
=
10
-
8
=
10
-
0
=
10
-
3
=
10
-
6
=