|
 | | |  | | | | |  | | | | |  | | 1. | | 182 - 90 = | 92 |  | 2. | | 551 - 20 = | 531 |  | 3. | | 519 - 40 = | 479 |  | | |  | | | | |  | | | | |  | | 4. | | 596 - 40 = | 556 |  | 5. | | 665 - 70 = | 595 |  | 6. | | 163 - 70 = | 93 |  | | |  | | | | |  | | | | |  | | 7. | | 435 - 20 = | 415 |  | 8. | | 974 - 90 = | 884 |  | 9. | | 348 - 40 = | 308 |  | | |  | | | | |  | | | | |  | | 10. | | 132 - 30 = | 102 |  | 11. | | 262 - 90 = | 172 |  | 12. | | 607 - 20 = | 587 |  | | |  | | | | |  | | | | |  | | 13. | | 235 - 70 = | 165 |  | 14. | | 631 - 20 = | 611 |  | 15. | | 278 - 70 = | 208 |
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