| 1 a. |
_________ – 3700 = 1500
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| 1 b. |
7600 – _________ = 700
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| 2 a. |
_________ – 6500 = 1100
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| 2 b. |
4700 – _________ = 1700
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| 3 a. |
_________ – 5600 = 400
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| 3 b. |
3400 – _________ = 400
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| 4 a. |
4300 – _________ = 1000
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| 4 b. |
_________ – 100 = 2800
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| 5 a. |
_________ – 3600 = 1800
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| 5 b. |
_________ – 5700 = 1900
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| 6 a. |
6900 – _________ = 2900
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| 6 b. |
6400 – _________ = 700
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| 7 a. |
7500 – _________ = 1600
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| 7 b. |
_________ – 6800 = 400
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| 8 a. |
_________ – 7900 = 1900
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| 8 b. |
6200 – _________ = 1600
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| 9 a. |
8900 – _________ = 1900
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| 9 b. |
7200 – _________ = 100
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