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| Old Math compared to the new Common Core Math. The problem - subtract 12 from 32. | |
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| The old way we would have 32, then subtract 12 by taking the bottom 2 from the top 2 and putting a zero, then taking the 1 away from the 3 and putting a 2 in front of the zero. Answer = 20. | |
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| Common core starts by adding 12 + 3 to get 15 and putting that on a line underneath the line with 32-12. | |
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| Then they add 15+5 to get 20, then 20+10 to get 30 and finally 30+2 to get 32. Stay with me now. | |
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| So you'll have 32-12 on the top line, then 12+3 on the second line, 15+5 on the third line, 20+10 on the fourth line and 30+2 on the bottom line. | |
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| To get the answer to "What is 32-12?" you simply add 3+5+10+2 because that makes all the sense in the world, right? | |
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