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| Begin at the top by subtracting the 2 numbers that are connected with arrows. The first one is done for you. The last number is given to you as a check. |
| 678 | 427 | 248 | 131 | 69 | ||||
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| 251 | ||||||
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| 3 |
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| Begin at the top by subtracting the 2 numbers that are connected with arrows. The first one is done for you. The last number is given to you as a check. |
| 678 | 427 | 248 | 131 | 69 | ||||
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| 251 | ||||||
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| 3 |