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What can you add to 70 to make 90

What can you add to 70 to make 90
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What can you add to 70 to make 90

User Rolevax
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u can add 20 because 70 plus 20 is 90, the 7 plus 2 will be 9 and at the end you just add a zero so it is 90
User Andrewcockerham
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