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 7 and 8
131
Click on the appropriate choice. When done, click on the submit button.
What is the difference between the 2 numbers?
8
-
6
=
8
-
4
=
8
-
7
=
7
-
6
=
7
-
4
=
7
-
3
=
8
-
8
=
8
-
5
=
7
-
4
=
7
-
6
=
8
-
3
=
8
-
4
=
8
-
1
=
8
-
2
=
7
-
1
=
8
-
0
=
7
-
4
=
7
-
5
=
7
-
3
=
7
-
2
=
7
-
7
=
8
-
3
=
7
-
1
=
8
-
7
=
8
-
5
=
8
-
0
=
8
-
4
=
8
-
2
=
8
-
8
=
8
-
1
=
7
-
2
=
8
-
2
=
8
-
3
=
7
-
0
=
7
-
3
=
7
-
7
=
8
-
8
=
7
-
0
=
8
-
6
=
7
-
1
=
7
-
5
=
8
-
1
=
8
-
6
=
8
-
7
=
7
-
2
=
7
-
5
=
8
-
5
=
7
-
6
=
8
-
0
=
7
-
0
=
7
-
7
=