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Subtraction w/ Number Line
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9 - 6 =
3
Oops!
Okay!
9 - 7 =
2
Oops!
Okay!
19 - 19 =
0
Oops!
Okay!
18 - 9 =
9
Oops!
Okay!
8 - 2 =
6
Oops!
Okay!
20 - 0 =
20
Oops!
Okay!
20 - 5 =
15
Oops!
Okay!
19 - 4 =
15
Oops!
Okay!
9 - 1 =
8
Oops!
Okay!
20 - 18 =
2
Oops!
Okay!
20 - 14 =
6
Oops!
Okay!
10 - 9 =
1
Oops!
Okay!
18 - 8 =
10
Oops!
Okay!
20 - 3 =
17
Oops!
Okay!
18 - 18 =
0
Oops!
Okay!
19 - 10 =
9
Oops!
Okay!
20 - 12 =
8
Oops!
Okay!
8 - 4 =
4
Oops!
Okay!
19 - 8 =
11
Oops!
Okay!
18 - 5 =
13
Oops!
Okay!
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