Number line: hop back
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Number line: hop back
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Start at the first number and hop back. Where do you land?
1
8 − 4 =
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
9 − 6 =
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3
10 − 5 =
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
4
15 − 4 =
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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