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Maths
Puzzle
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TARGET
627
75
100
4
2
+
−
×
÷
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Counter Builder
Decimal Measures
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
−1 0 1 2 3
Infinite Scale
7
+
3
=
10
The Ruler
× 3
3
6
9
12
15