subtraction/facts/starter · Набор 87

20 problems
1
3 - 1 =
2
7 - 3 =
3
9 - 4 =
4
6 - 5 =
5
5 - 4 =
6
7 - 6 =
7
2 - 1 =
8
2 - 1 =
9
9 - 7 =
10
2 - 1 =
11
5 - 3 =
12
3 - 2 =
13
7 - 2 =
14
7 - 5 =
15
8 - 4 =
16
7 - 1 =
17
9 - 3 =
18
7 - 1 =
19
5 - 3 =
20
7 - 1 =
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