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Mathematics, 18.01.2020 13:31 amila17

If
4+4 =20
5+5=30
6+6=42
7+7=56
then
9+9=?

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Answers: 3

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If
4+4 =20
5+5=30
6+6=42
7+7=56
then
9+9=?...

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