Solve.
| 1 a. |
500 + 30 + 2000 + _________ = 2534
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| 1 b. |
0 + ____________ + 500 + 8000 = 8580
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| 2 a. |
_________ + 6 + 800 + 3000 = 3816
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| 2 b. |
900 + 10 + ____________ + 9 = 7919
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| 3 a. |
4 + 0 + ____________ + 9000 = 9104
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| 3 b. |
4 + ____________ + 9000 + 10 = 9314
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| 4 a. |
8 + 600 + 6000 + ____________ = 6648
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| 4 b. |
5 + 70 + 300 + ____________ = 5375
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| 5 a. |
6 + _________ + 100 + 3000 = 3186
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| 5 b. |
_________ + 3000 + 800 + 30 = 3836
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| 6 a. |
6 + ____________ + 900 + 6000 = 6976
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| 6 b. |
9 + 800 + _________ + 70 = 2879
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| 7 a. |
8000 + 400 + ____________ + 6 = 8436
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| 7 b. |
9 + 1000 + 200 + _________ = 1259
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| 8 a. |
1 + ____________ + 900 + 9000 = 9961
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| 8 b. |
2 + ____________ + 100 + 4000 = 4152
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