Solve.
| 1 a. |
70 + 90 + 30 + 90 = ________
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| 1 b. |
70 + 40 + 70 + 60 = ________
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| 2 a. |
160 + 80 + 60 + 30 = ________
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| 2 b. |
190 + 100 + 10 + 80 = ________
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| 3 a. |
120 + 20 + 70 + 40 = ________
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| 3 b. |
20 + 100 + 10 + 50 = ________
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| 4 a. |
100 + 10 + 90 + 110 = ________
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| 4 b. |
70 + 30 + 20 + 40 = ________
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| 5 a. |
50 + 60 + 80 + 10 = ________
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| 5 b. |
110 + 20 + 10 + 60 = ________
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| 6 a. |
160 + 10 + 50 + 20 = ________
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| 6 b. |
10 + 90 + 40 + 60 = ________
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| 7 a. |
80 + 30 + 80 + 20 = ________
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| 7 b. |
160 + 80 + 20 + 80 = ________
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| 8 a. |
70 + 40 + 100 + 110 = ________
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| 8 b. |
70 + 10 + 40 + 100 = ________
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