Solve.
| 1 a. |
1000 + 500 + 90 + 1 = __________
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| 1 b. |
1 + 0 + 500 + 6000 = __________
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| 2 a. |
8 + 0 + 700 + 9000 = __________
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| 2 b. |
7000 + 600 + 50 + 7 = __________
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| 3 a. |
9 + 10 + 0 + 1000 = __________
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| 3 b. |
5 + 80 + 800 + 2000 = __________
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| 4 a. |
0 + 1000 + 200 + 90 = __________
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| 4 b. |
0 + 30 + 800 + 1000 = __________
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| 5 a. |
8 + 1000 + 300 + 80 = __________
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| 5 b. |
8 + 100 + 1000 + 40 = __________
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| 6 a. |
0 + 300 + 1000 + 0 = __________
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| 6 b. |
1 + 300 + 8000 + 50 = __________
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| 7 a. |
50 + 4 + 100 + 4000 = __________
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| 7 b. |
9 + 3000 + 300 + 80 = __________
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| 8 a. |
20 + 4 + 800 + 7000 = __________
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| 8 b. |
5 + 3000 + 200 + 70 = __________
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