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2s, 5s and 10s - Addition
Test your skills in addition
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A
B
2 + 2
4
5 + 5
10
5 + 5 + 5
15
10 + 10
20
10 + 10 + 10
30
2 + 2 + 2
6
2 + 2 + 2+ 2
8
5 + 5 + 5+ 5
20
10 + 10 + 10 + 10
40
2 + 2 + 2 +2 +2
10
5 + 5 +5 + 5 + 5
25
2 + 2 + 2 + 2 + 2 + 2
12
5 + 5 +5 +5 + 5 +5
30
10 + 10 + 10 + 10 + 10
50