| 1 a. |
1100 – 800 = _________
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| 1 b. |
4200 – 300 = _________
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| 2 a. |
3500 – 300 = _________
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| 2 b. |
1100 – 300 = _________
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| 3 a. |
3600 – 200 = _________
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| 3 b. |
5000 – 600 = _________
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| 4 a. |
6600 – 100 = _________
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| 4 b. |
5500 – 700 = _________
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| 5 a. |
3400 – 600 = _________
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| 5 b. |
7400 – 900 = _________
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| 6 a. |
300 – 300 = _________
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| 6 b. |
8300 – 400 = _________
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| 7 a. |
9100 – 500 = _________
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| 7 b. |
8500 – 600 = _________
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| 8 a. |
2100 – 200 = _________
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| 8 b. |
4900 – 500 = _________
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| 9 a. |
6400 – 300 = _________
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| 9 b. |
9200 – 600 = _________
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| 10 a. |
200 – 100 = _________
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| 10 b. |
7900 – 500 = _________
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