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How to make a ten to find 12-4
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4 votes
How to make a ten to find 12-4

User Zion Ben Yacov
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2 Answers

6 votes
I think is 8 I'm not sure I think is that
User Dmitry Zinkevich
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7.0k points
3 votes
take the 12 and split it into 10 + 2.
then you have 10 + 2 - 4.
reorder to get 10 - 4 + 2 (by commutative property)
then you have 6 + 2 = 8
User Deejbee
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6.4k points
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